73742856 has 32 divisors (see below), whose sum is σ = 201117600. Its totient is φ = 22346240.

The previous prime is 73742849. The next prime is 73742863. The reversal of 73742856 is 65824737.

It is an interprime number because it is at equal distance from previous prime (73742849) and next prime (73742863).

It is a super-2 number, since 2×73742856² = 10876017622073472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139401 + ... + 139928.

It is an arithmetic number, because the mean of its divisors is an integer number (6284925).

Almost surely, 2^73742856 is an apocalyptic number.

It is an amenable number.

73742856 is an abundant number, since it is smaller than the sum of its proper divisors (127374744).

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

73742856 is a wasteful number, since it uses less digits than its factorization.

73742856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279349 (or 279345 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 73742856 is about 8587.3660688246. The cubic root of 73742856 is about 419.3467850522.

The spelling of 73742856 in words is "seventy-three million, seven hundred forty-two thousand, eight hundred fifty-six".