999272372 has 24 divisors (see below), whose sum is σ = 2067461760. Its totient is φ = 413491680.

The previous prime is 999272341. The next prime is 999272411. The reversal of 999272372 is 273272999.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 999272372.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614504 + ... + 616127.

It is an arithmetic number, because the mean of its divisors is an integer number (86144240).

Almost surely, 2^999272372 is an apocalyptic number.

It is an amenable number.

999272372 is an abundant number, since it is smaller than the sum of its proper divisors (1068189388).

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

999272372 is a wasteful number, since it uses less digits than its factorization.

999272372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230671 (or 1230669 counting only the distinct ones).

The product of its digits is 857304, while the sum is 50.

The square root of 999272372 is about 31611.2696992702. The cubic root of 999272372 is about 999.7573984826.

The spelling of 999272372 in words is "nine hundred ninety-nine million, two hundred seventy-two thousand, three hundred seventy-two".