1045475020 has 24 divisors (see below), whose sum is σ = 2196457200. Its totient is φ = 418007232.

The previous prime is 1045474967. The next prime is 1045475023. The reversal of 1045475020 is 205745401.

It is a self number, because there is not a number n which added to its sum of digits gives 1045475020.

It is not an unprimeable number, because it can be changed into a prime (1045475023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41446 + ... + 61714.

It is an arithmetic number, because the mean of its divisors is an integer number (91519050).

Almost surely, 2^1045475020 is an apocalyptic number.

1045475020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045475020 is an abundant number, since it is smaller than the sum of its proper divisors (1150982180).

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

1045475020 is a wasteful number, since it uses less digits than its factorization.

1045475020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22857 (or 22855 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 1045475020 is about 32333.8061477457. The cubic root of 1045475020 is about 1014.9341994277.

The spelling of 1045475020 in words is "one billion, forty-five million, four hundred seventy-five thousand, twenty".