940408539 has 36 divisors (see below), whose sum is σ = 1499400504. Its totient is φ = 522740736.

The previous prime is 940408523. The next prime is 940408559. The reversal of 940408539 is 935804049.

It is not a de Polignac number, because 940408539 - 2⁴ = 940408523 is a prime.

It is a super-2 number, since 2×940408539² = 1768736440448229042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 940408539.

It is not an unprimeable number, because it can be changed into a prime (940408559) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 198907 + ... + 203579.

It is an arithmetic number, because the mean of its divisors is an integer number (41650014).

Almost surely, 2^940408539 is an apocalyptic number.

940408539 is a deficient number, since it is larger than the sum of its proper divisors (558991965).

940408539 is a wasteful number, since it uses less digits than its factorization.

940408539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764 (or 4720 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 940408539 is about 30666.0812462238. The cubic root of 940408539 is about 979.7280027459.

The spelling of 940408539 in words is "nine hundred forty million, four hundred eight thousand, five hundred thirty-nine".