190312838142 has 32 divisors (see below), whose sum is σ = 435309638400. Its totient is φ = 54336488448.

The previous prime is 190312838137. The next prime is 190312838143. The reversal of 190312838142 is 241838213091.

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 = 190312838094 and 190312838103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190312838143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1548792 + ... + 1667147.

It is an arithmetic number, because the mean of its divisors is an integer number (13603426200).

Almost surely, 2^190312838142 is an apocalyptic number.

190312838142 is an abundant number, since it is smaller than the sum of its proper divisors (244996800258).

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

190312838142 is a wasteful number, since it uses less digits than its factorization.

190312838142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217360.

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 190312838142 in words is "one hundred ninety billion, three hundred twelve million, eight hundred thirty-eight thousand, one hundred forty-two".