1040785382 has 144 divisors (see below), whose sum is σ = 2159885952. Its totient is φ = 372314880.

The previous prime is 1040785381. The next prime is 1040785387. The reversal of 1040785382 is 2835870401.

It is a super-2 number, since 2×1040785382² = 2166468422769771848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040785381) 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 71 ways as a sum of consecutive naturals, for example, 14257298 + ... + 14257370.

It is an arithmetic number, because the mean of its divisors is an integer number (14999208).

Almost surely, 2^1040785382 is an apocalyptic number.

1040785382 is an abundant number, since it is smaller than the sum of its proper divisors (1119100570).

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

1040785382 is a wasteful number, since it uses less digits than its factorization.

1040785382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 1040785382 is about 32261.2055261424. The cubic root of 1040785382 is about 1013.4143771987.

The spelling of 1040785382 in words is "one billion, forty million, seven hundred eighty-five thousand, three hundred eighty-two".