74643486 has 8 divisors (see below), whose sum is σ = 149286984. Its totient is φ = 24881160.

The previous prime is 74643469. The next prime is 74643509. The reversal of 74643486 is 68434647.

It is a sphenic number, since it is the product of 3 distinct primes.

74643486 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6220285 + ... + 6220296.

It is an arithmetic number, because the mean of its divisors is an integer number (18660873).

Almost surely, 2^74643486 is an apocalyptic number.

74643486 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74643486 is a wasteful number, since it uses less digits than its factorization.

74643486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12440586.

The product of its digits is 387072, while the sum is 42.

The square root of 74643486 is about 8639.6461733106. The cubic root of 74643486 is about 421.0470587185.

The spelling of 74643486 in words is "seventy-four million, six hundred forty-three thousand, four hundred eighty-six".