74937660 has 144 divisors (see below), whose sum is σ = 248209920. Its totient is φ = 16840320.

The previous prime is 74937659. The next prime is 74937661. The reversal of 74937660 is 6673947.

It is an interprime number because it is at equal distance from previous prime (74937659) and next prime (74937661).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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 (74937661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 208561 + ... + 208919.

It is an arithmetic number, because the mean of its divisors is an integer number (1723680).

Almost surely, 2^74937660 is an apocalyptic number.

74937660 is a gapful number since it is divisible by the number (70) 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 74937660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124104960).

74937660 is an abundant number, since it is smaller than the sum of its proper divisors (173272260).

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

74937660 is a wasteful number, since it uses less digits than its factorization.

74937660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 74937660 is about 8656.6540880412. The cubic root of 74937660 is about 421.5994567239.

The spelling of 74937660 in words is "seventy-four million, nine hundred thirty-seven thousand, six hundred sixty".