72449355 has 48 divisors (see below), whose sum is σ = 128701440. Its totient is φ = 34774080.

The previous prime is 72449353. The next prime is 72449381. The reversal of 72449355 is 55394427.

It is not a de Polignac number, because 72449355 - 2¹ = 72449353 is a prime.

Its product of digits (151200) is a multiple of the sum of its prime factors (432).

It is not an unprimeable number, because it can be changed into a prime (72449353) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 324774 + ... + 324996.

It is an arithmetic number, because the mean of its divisors is an integer number (2681280).

Almost surely, 2^72449355 is an apocalyptic number.

72449355 is a deficient number, since it is larger than the sum of its proper divisors (56252085).

72449355 is a wasteful number, since it uses less digits than its factorization.

72449355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 421 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 72449355 is about 8511.7186866108. The cubic root of 72449355 is about 416.8804296919.

The spelling of 72449355 in words is "seventy-two million, four hundred forty-nine thousand, three hundred fifty-five".