1045620345 has 32 divisors (see below), whose sum is σ = 2085811200. Its totient is φ = 434543040.

The previous prime is 1045620313. The next prime is 1045620383. The reversal of 1045620345 is 5430265401.

It is not a de Polignac number, because 1045620345 - 2⁵ = 1045620313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 451495 + ... + 453804.

It is an arithmetic number, because the mean of its divisors is an integer number (65181600).

Almost surely, 2^1045620345 is an apocalyptic number.

1045620345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1045620345 is a deficient number, since it is larger than the sum of its proper divisors (1040190855).

1045620345 is a wasteful number, since it uses less digits than its factorization.

1045620345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905325.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1045620345 is about 32336.0533306092. The cubic root of 1045620345 is about 1014.9812238189.

Adding to 1045620345 its reverse (5430265401), we get a palindrome (6475885746).

The spelling of 1045620345 in words is "one billion, forty-five million, six hundred twenty thousand, three hundred forty-five".