190761420 has 96 divisors (see below), whose sum is σ = 585144000. Its totient is φ = 46219264.

The previous prime is 190761409. The next prime is 190761421. The reversal of 190761420 is 24167091.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (190761421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26356 + ... + 32804.

It is an arithmetic number, because the mean of its divisors is an integer number (6095250).

Almost surely, 2^190761420 is an apocalyptic number.

190761420 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 190761420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292572000).

190761420 is an abundant number, since it is smaller than the sum of its proper divisors (394382580).

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

190761420 is a wasteful number, since it uses less digits than its factorization.

190761420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6507 (or 6505 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 190761420 is about 13811.6407425041. The cubic root of 190761420 is about 575.6566361154.

The spelling of 190761420 in words is "one hundred ninety million, seven hundred sixty-one thousand, four hundred twenty".