1040778564 has 48 divisors (see below), whose sum is σ = 2871120000. Its totient is φ = 287110656.

The previous prime is 1040778551. The next prime is 1040778577. The reversal of 1040778564 is 4658770401.

It is an interprime number because it is at equal distance from previous prime (1040778551) and next prime (1040778577).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211189 + ... + 216060.

It is an arithmetic number, because the mean of its divisors is an integer number (59815000).

Almost surely, 2^1040778564 is an apocalyptic number.

1040778564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1040778564 is an abundant number, since it is smaller than the sum of its proper divisors (1830341436).

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

1040778564 is a wasteful number, since it uses less digits than its factorization.

1040778564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427292 (or 427290 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 1040778564 is about 32261.0998572584. The cubic root of 1040778564 is about 1013.4121642947.

The spelling of 1040778564 in words is "one billion, forty million, seven hundred seventy-eight thousand, five hundred sixty-four".