1940642496 has 112 divisors (see below), whose sum is σ = 6144056800. Its totient is φ = 597113856.

The previous prime is 1940642491. The next prime is 1940642507. The reversal of 1940642496 is 6942460491.

It is a super-2 number, since 2×1940642496² = 7532186594562220032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1940642491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20731 + ... + 65658.

It is an arithmetic number, because the mean of its divisors is an integer number (54857650).

Almost surely, 2^1940642496 is an apocalyptic number.

1940642496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1940642496 is an abundant number, since it is smaller than the sum of its proper divisors (4203414304).

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

1940642496 is a wasteful number, since it uses less digits than its factorization.

1940642496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86423 (or 86407 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 1940642496 is about 44052.7240474412. The cubic root of 1940642496 is about 1247.3313726100.

The spelling of 1940642496 in words is "one billion, nine hundred forty million, six hundred forty-two thousand, four hundred ninety-six".