1045209320 has 32 divisors (see below), whose sum is σ = 2372542920. Its totient is φ = 414382080.

The previous prime is 1045209311. The next prime is 1045209377. The reversal of 1045209320 is 239025401.

It can be written as a sum of positive squares in 4 ways, for example, as 841348036 + 203861284 = 29006^2 + 14278^2 .

It is a super-2 number, since 2×1045209320² = 2184925045229724800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1045209320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111101 + ... + 120140.

Almost surely, 2^1045209320 is an apocalyptic number.

1045209320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045209320 is an abundant number, since it is smaller than the sum of its proper divisors (1327333600).

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

1045209320 is a wasteful number, since it uses less digits than its factorization.

1045209320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231365 (or 231361 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1045209320 is about 32329.6971838587. The cubic root of 1045209320 is about 1014.8482127201.

The spelling of 1045209320 in words is "one billion, forty-five million, two hundred nine thousand, three hundred twenty".