74474780 has 12 divisors (see below), whose sum is σ = 156397080. Its totient is φ = 29789904.

The previous prime is 74474779. The next prime is 74474783. The reversal of 74474780 is 8747447.

It is a super-5 number, since 5×74474780⁵ (a number of 41 digits) contains 55555 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74474783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1861850 + ... + 1861889.

It is an arithmetic number, because the mean of its divisors is an integer number (13033090).

Almost surely, 2^74474780 is an apocalyptic number.

It is an amenable number.

74474780 is an abundant number, since it is smaller than the sum of its proper divisors (81922300).

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

74474780 is a wasteful number, since it uses less digits than its factorization.

74474780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3723748 (or 3723746 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 41.

The square root of 74474780 is about 8629.8771717794. The cubic root of 74474780 is about 420.7296086119.

The spelling of 74474780 in words is "seventy-four million, four hundred seventy-four thousand, seven hundred eighty".