912400140 has 48 divisors (see below), whose sum is σ = 2689182720. Its totient is φ = 230500800.

The previous prime is 912400127. The next prime is 912400157. The reversal of 912400140 is 41004219.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399036 + ... + 401315.

It is an arithmetic number, because the mean of its divisors is an integer number (56024640).

Almost surely, 2^912400140 is an apocalyptic number.

It is an amenable number.

912400140 is an abundant number, since it is smaller than the sum of its proper divisors (1776782580).

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

912400140 is a wasteful number, since it uses less digits than its factorization.

912400140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800382 (or 800380 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 912400140 is about 30205.9619942819. The cubic root of 912400140 is about 969.9033240526.

Adding to 912400140 its reverse (41004219), we get a palindrome (953404359).

The spelling of 912400140 in words is "nine hundred twelve million, four hundred thousand, one hundred forty".