72261358 has 12 divisors (see below), whose sum is σ = 117371808. Its totient is φ = 33351240.

The previous prime is 72261347. The next prime is 72261367. The reversal of 72261358 is 85316227.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106558 + ... + 107233.

It is an arithmetic number, because the mean of its divisors is an integer number (9780984).

Almost surely, 2^72261358 is an apocalyptic number.

72261358 is a deficient number, since it is larger than the sum of its proper divisors (45110450).

72261358 is a wasteful number, since it uses less digits than its factorization.

72261358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213819 (or 213806 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 72261358 is about 8500.6680913914. The cubic root of 72261358 is about 416.5195331881.

The spelling of 72261358 in words is "seventy-two million, two hundred sixty-one thousand, three hundred fifty-eight".