2045306404 has 6 divisors (see below), whose sum is σ = 3579286214. Its totient is φ = 1022653200.

The previous prime is 2045306399. The next prime is 2045306423. The reversal of 2045306404 is 4046035402.

It can be written as a sum of positive squares in only one way, i.e., 1540405504 + 504900900 = 39248^2 + 22470^2 .

It is a super-2 number, since 2×2045306404² = 8366556572486822432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255663297 + ... + 255663304.

Almost surely, 2^2045306404 is an apocalyptic number.

It is an amenable number.

2045306404 is a deficient number, since it is larger than the sum of its proper divisors (1533979810).

2045306404 is a wasteful number, since it uses less digits than its factorization.

2045306404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511326605 (or 511326603 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 2045306404 is about 45225.0638916077. The cubic root of 2045306404 is about 1269.3638502908.

The spelling of 2045306404 in words is "two billion, forty-five million, three hundred six thousand, four hundred four".