72246870 has 32 divisors (see below), whose sum is σ = 192659040. Its totient is φ = 19265760.

The previous prime is 72246869. The next prime is 72246877. The reversal of 72246870 is 7864227.

It is a super-2 number, since 2×72246870² = 10439220449593800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72246877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133521 + ... + 134060.

It is an arithmetic number, because the mean of its divisors is an integer number (6020595).

Almost surely, 2^72246870 is an apocalyptic number.

72246870 is an abundant number, since it is smaller than the sum of its proper divisors (120412170).

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

72246870 is a wasteful number, since it uses less digits than its factorization.

72246870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267597 (or 267591 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 72246870 is about 8499.8158803588. The cubic root of 72246870 is about 416.4916947116.

The spelling of 72246870 in words is "seventy-two million, two hundred forty-six thousand, eight hundred seventy".