72395774 has 32 divisors (see below), whose sum is σ = 124921440. Its totient is φ = 31158400.

The previous prime is 72395767. The next prime is 72395797. The reversal of 72395774 is 47759327.

It is a super-2 number, since 2×72395774² = 10482296186118152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32744 + ... + 34884.

It is an arithmetic number, because the mean of its divisors is an integer number (3903795).

Almost surely, 2^72395774 is an apocalyptic number.

72395774 is a deficient number, since it is larger than the sum of its proper divisors (52525666).

72395774 is a wasteful number, since it uses less digits than its factorization.

72395774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236.

The product of its digits is 370440, while the sum is 44.

The square root of 72395774 is about 8508.5706202628. The cubic root of 72395774 is about 416.7776343020. Note that the first 3 decimals are identical.

The spelling of 72395774 in words is "seventy-two million, three hundred ninety-five thousand, seven hundred seventy-four".