74451912 has 32 divisors (see below), whose sum is σ = 187324800. Its totient is φ = 24657984.

The previous prime is 74451907. The next prime is 74451917. The reversal of 74451912 is 21915447.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74451907) and next prime (74451917).

It is not an unprimeable number, because it can be changed into a prime (74451917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6112 + ... + 13647.

It is an arithmetic number, because the mean of its divisors is an integer number (5853900).

Almost surely, 2^74451912 is an apocalyptic number.

It is an amenable number.

74451912 is an abundant number, since it is smaller than the sum of its proper divisors (112872888).

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

74451912 is a wasteful number, since it uses less digits than its factorization.

74451912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19925 (or 19921 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 74451912 is about 8628.5521381052. The cubic root of 74451912 is about 420.6865415512.

The spelling of 74451912 in words is "seventy-four million, four hundred fifty-one thousand, nine hundred twelve".