190356506340 has 864 divisors, whose sum is σ = 758301989760. Its totient is φ = 35223552000.

The previous prime is 190356506339. The next prime is 190356506341. The reversal of 190356506340 is 43605653091.

It is an interprime number because it is at equal distance from previous prime (190356506339) and next prime (190356506341).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 190356506292 and 190356506301.

It is not an unprimeable number, because it can be changed into a prime (190356506341) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 158497740 + ... + 158498940.

It is an arithmetic number, because the mean of its divisors is an integer number (877664340).

Almost surely, 2^190356506340 is an apocalyptic number.

190356506340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190356506340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379150994880).

190356506340 is an abundant number, since it is smaller than the sum of its proper divisors (567945483420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190356506340 is a wasteful number, since it uses less digits than its factorization.

190356506340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293 (or 1271 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 42.

It can be divided in two parts, 190356 and 506340, that added together give a palindrome (696696).

The spelling of 190356506340 in words is "one hundred ninety billion, three hundred fifty-six million, five hundred six thousand, three hundred forty".