74740236 has 12 divisors (see below), whose sum is σ = 174393912. Its totient is φ = 24913408.

The previous prime is 74740231. The next prime is 74740261. The reversal of 74740236 is 63204747.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×74740236² = 11172205754671392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74740197 and 74740206.

It is not an unprimeable number, because it can be changed into a prime (74740231) 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, 3114165 + ... + 3114188.

It is an arithmetic number, because the mean of its divisors is an integer number (14532826).

Almost surely, 2^74740236 is an apocalyptic number.

It is an amenable number.

74740236 is an abundant number, since it is smaller than the sum of its proper divisors (99653676).

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

74740236 is a wasteful number, since it uses less digits than its factorization.

74740236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6228360 (or 6228358 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 74740236 is about 8645.2435477550. The cubic root of 74740236 is about 421.2288951497.

The spelling of 74740236 in words is "seventy-four million, seven hundred forty thousand, two hundred thirty-six".