74740446 has 24 divisors (see below), whose sum is σ = 176659704. Its totient is φ = 22648560.

The previous prime is 74740429. The next prime is 74740447. The reversal of 74740446 is 64404747.

It is a super-2 number, since 2×74740446² = 11172268536557832, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74740446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74740447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188541 + ... + 188936.

It is an arithmetic number, because the mean of its divisors is an integer number (7360821).

Almost surely, 2^74740446 is an apocalyptic number.

74740446 is an abundant number, since it is smaller than the sum of its proper divisors (101919258).

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

74740446 is a wasteful number, since it uses less digits than its factorization.

74740446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377496 (or 377493 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 74740446 is about 8645.2556931533. The cubic root of 74740446 is about 421.2292896627.

The spelling of 74740446 in words is "seventy-four million, seven hundred forty thousand, four hundred forty-six".