9940957372 has 12 divisors (see below), whose sum is σ = 17406477760. Its totient is φ = 4967678016.

The previous prime is 9940957363. The next prime is 9940957373. The reversal of 9940957372 is 2737590499.

It is a super-2 number, since 2×9940957372² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9940957373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692172 + ... + 706387.

Almost surely, 2^9940957372 is an apocalyptic number.

It is an amenable number.

9940957372 is a deficient number, since it is larger than the sum of its proper divisors (7465520388).

9940957372 is a wasteful number, since it uses less digits than its factorization.

9940957372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400340 (or 1400338 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 55.

The square root of 9940957372 is about 99704.3498148401. The cubic root of 9940957372 is about 2150.1862014325.

The spelling of 9940957372 in words is "nine billion, nine hundred forty million, nine hundred fifty-seven thousand, three hundred seventy-two".