72453774 has 16 divisors (see below), whose sum is σ = 149904720. Its totient is φ = 23318400.

The previous prime is 72453767. The next prime is 72453781. The reversal of 72453774 is 47735427.

It is an interprime number because it is at equal distance from previous prime (72453767) and next prime (72453781).

It is a congruent number.

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, 208027 + ... + 208374.

It is an arithmetic number, because the mean of its divisors is an integer number (9369045).

Almost surely, 2^72453774 is an apocalyptic number.

72453774 is an abundant number, since it is smaller than the sum of its proper divisors (77450946).

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

72453774 is a wasteful number, since it uses less digits than its factorization.

72453774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416435.

The product of its digits is 164640, while the sum is 39.

The square root of 72453774 is about 8511.9782659497. The cubic root of 72453774 is about 416.8889053007. Note that the first 3 decimals are identical.

The spelling of 72453774 in words is "seventy-two million, four hundred fifty-three thousand, seven hundred seventy-four".