940012128 has 120 divisors (see below), whose sum is σ = 3015963720. Its totient is φ = 284843520.

The previous prime is 940012109. The next prime is 940012133. The reversal of 940012128 is 821210049.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12028 + ... + 44996.

It is an arithmetic number, because the mean of its divisors is an integer number (25133031).

Almost surely, 2^940012128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 940012128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1507981860).

940012128 is an abundant number, since it is smaller than the sum of its proper divisors (2075951592).

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

940012128 is a wasteful number, since it uses less digits than its factorization.

940012128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33002 (or 32985 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 940012128 is about 30659.6172187456. The cubic root of 940012128 is about 979.5903216125.

It can be divided in two parts, 9400 and 12128, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 940012128 in words is "nine hundred forty million, twelve thousand, one hundred twenty-eight".