45938809 has 4 divisors (see below), whose sum is σ = 52501504. Its totient is φ = 39376116.

The previous prime is 45938803. The next prime is 45938831. The reversal of 45938809 is 90883954.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45938809 - 2³ = 45938801 is a prime.

It is a super-2 number, since 2×45938809² = 4220748344676962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45938801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3281337 + ... + 3281350.

It is an arithmetic number, because the mean of its divisors is an integer number (13125376).

Almost surely, 2^45938809 is an apocalyptic number.

It is an amenable number.

45938809 is a deficient number, since it is larger than the sum of its proper divisors (6562695).

45938809 is an equidigital number, since it uses as much as digits as its factorization.

45938809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6562694.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 45938809 is about 6777.8174215598. The cubic root of 45938809 is about 358.1458395852.

The spelling of 45938809 in words is "forty-five million, nine hundred thirty-eight thousand, eight hundred nine".