45640605 has 8 divisors (see below), whose sum is σ = 73024992. Its totient is φ = 24341648.

The previous prime is 45640561. The next prime is 45640607. The reversal of 45640605 is 50604654.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45640605 - 2⁷ = 45640477 is a prime.

It is a super-3 number, since 3×45640605³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45640607) 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, 1521339 + ... + 1521368.

It is an arithmetic number, because the mean of its divisors is an integer number (9128124).

Almost surely, 2^45640605 is an apocalyptic number.

It is an amenable number.

45640605 is a deficient number, since it is larger than the sum of its proper divisors (27384387).

45640605 is a wasteful number, since it uses less digits than its factorization.

45640605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042715.

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

The square root of 45640605 is about 6755.7830782227. The cubic root of 45640605 is about 357.3692090065.

The spelling of 45640605 in words is "forty-five million, six hundred forty thousand, six hundred five".