940904121 has 16 divisors (see below), whose sum is σ = 1287336960. Its totient is φ = 610922880.

The previous prime is 940904119. The next prime is 940904131. The reversal of 940904121 is 121409049.

It is not a de Polignac number, because 940904121 - 2¹ = 940904119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (940904131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69160 + ... + 81638.

It is an arithmetic number, because the mean of its divisors is an integer number (80458560).

Almost surely, 2^940904121 is an apocalyptic number.

It is an amenable number.

940904121 is a deficient number, since it is larger than the sum of its proper divisors (346432839).

940904121 is a wasteful number, since it uses less digits than its factorization.

940904121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13136.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 940904121 is about 30674.1604775094. The cubic root of 940904121 is about 979.9000734570.

The spelling of 940904121 in words is "nine hundred forty million, nine hundred four thousand, one hundred twenty-one".