74786436 has 24 divisors (see below), whose sum is σ = 193891040. Its totient is φ = 24928776.

The previous prime is 74786431. The next prime is 74786449. The reversal of 74786436 is 63468747.

It is a super-2 number, since 2×74786436² = 11186022019164192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74786391 and 74786400.

It is not an unprimeable number, because it can be changed into a prime (74786431) 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 7 ways as a sum of consecutive naturals, for example, 346126 + ... + 346341.

Almost surely, 2^74786436 is an apocalyptic number.

It is an amenable number.

74786436 is an abundant number, since it is smaller than the sum of its proper divisors (119104604).

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

74786436 is a wasteful number, since it uses less digits than its factorization.

74786436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692480 (or 692472 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 74786436 is about 8647.9151244679. The cubic root of 74786436 is about 421.3156702146.

The spelling of 74786436 in words is "seventy-four million, seven hundred eighty-six thousand, four hundred thirty-six".