74347456 has 28 divisors (see below), whose sum is σ = 155300680. Its totient is φ = 35216640.

The previous prime is 74347439. The next prime is 74347489. The reversal of 74347456 is 65474347.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29355 + ... + 31786.

Almost surely, 2^74347456 is an apocalyptic number.

74347456 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

74347456 is an abundant number, since it is smaller than the sum of its proper divisors (80953224).

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

74347456 is a wasteful number, since it uses less digits than its factorization.

74347456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61172 (or 61162 counting only the distinct ones).

The product of its digits is 282240, while the sum is 40.

The square root of 74347456 is about 8622.4970861114. The cubic root of 74347456 is about 420.4897084589.

The spelling of 74347456 in words is "seventy-four million, three hundred forty-seven thousand, four hundred fifty-six".