72354776 has 16 divisors (see below), whose sum is σ = 146101200. Its totient is φ = 33394464.

The previous prime is 72354773. The next prime is 72354781. The reversal of 72354776 is 67745327.

It is a super-2 number, since 2×72354776² = 10470427220020352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72354773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347756 + ... + 347963.

It is an arithmetic number, because the mean of its divisors is an integer number (9131325).

Almost surely, 2^72354776 is an apocalyptic number.

It is an amenable number.

72354776 is an abundant number, since it is smaller than the sum of its proper divisors (73746424).

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

72354776 is a wasteful number, since it uses less digits than its factorization.

72354776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695738 (or 695734 counting only the distinct ones).

The product of its digits is 246960, while the sum is 41.

The square root of 72354776 is about 8506.1610612544. The cubic root of 72354776 is about 416.6989451971.

The spelling of 72354776 in words is "seventy-two million, three hundred fifty-four thousand, seven hundred seventy-six".