1045990392 has 32 divisors (see below), whose sum is σ = 2617555200. Its totient is φ = 348319584.

The previous prime is 1045990391. The next prime is 1045990403. The reversal of 1045990392 is 2930995401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045990391) 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 7 ways as a sum of consecutive naturals, for example, 3963 + ... + 45909.

It is an arithmetic number, because the mean of its divisors is an integer number (81798600).

Almost surely, 2^1045990392 is an apocalyptic number.

1045990392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1045990392 is an abundant number, since it is smaller than the sum of its proper divisors (1571564808).

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

1045990392 is a wasteful number, since it uses less digits than its factorization.

1045990392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42995 (or 42991 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 1045990392 is about 32341.7747193935. The cubic root of 1045990392 is about 1015.1009442828.

The spelling of 1045990392 in words is "one billion, forty-five million, nine hundred ninety thousand, three hundred ninety-two".