74790492 has 96 divisors (see below), whose sum is σ = 205997568. Its totient is φ = 20680704.

The previous prime is 74790481. The next prime is 74790493. The reversal of 74790492 is 29409747.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74790493) 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, 545848 + ... + 545984.

It is an arithmetic number, because the mean of its divisors is an integer number (2145808).

Almost surely, 2^74790492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74790492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102998784).

74790492 is an abundant number, since it is smaller than the sum of its proper divisors (131207076).

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

74790492 is a wasteful number, since it uses less digits than its factorization.

74790492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 74790492 is about 8648.1496286778. The cubic root of 74790492 is about 421.3232866825.

The spelling of 74790492 in words is "seventy-four million, seven hundred ninety thousand, four hundred ninety-two".