1940400524 has 24 divisors (see below), whose sum is σ = 3440070480. Its totient is φ = 957605184.

The previous prime is 1940400503. The next prime is 1940400547. The reversal of 1940400524 is 4250040491.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86102 + ... + 106274.

It is an arithmetic number, because the mean of its divisors is an integer number (143336270).

Almost surely, 2^1940400524 is an apocalyptic number.

It is an amenable number.

1940400524 is a deficient number, since it is larger than the sum of its proper divisors (1499669956).

1940400524 is a wasteful number, since it uses less digits than its factorization.

1940400524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20489 (or 20487 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1940400524 is about 44049.9775709364. The cubic root of 1940400524 is about 1247.2795286438.

The spelling of 1940400524 in words is "one billion, nine hundred forty million, four hundred thousand, five hundred twenty-four".