72541446 has 8 divisors (see below), whose sum is σ = 145082904. Its totient is φ = 24180480.

The previous prime is 72541433. The next prime is 72541453. The reversal of 72541446 is 64414527.

It is a sphenic number, since it is the product of 3 distinct primes.

72541446 is an admirable number.

It is a super-2 number, since 2×72541446² = 10524522775541832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6045115 + ... + 6045126.

It is an arithmetic number, because the mean of its divisors is an integer number (18135363).

Almost surely, 2^72541446 is an apocalyptic number.

72541446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72541446 is a wasteful number, since it uses less digits than its factorization.

72541446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12090246.

The product of its digits is 26880, while the sum is 33.

The square root of 72541446 is about 8517.1266281534. The cubic root of 72541446 is about 417.0569883412.

The spelling of 72541446 in words is "seventy-two million, five hundred forty-one thousand, four hundred forty-six".