45309646 has 8 divisors (see below), whose sum is σ = 68256864. Its totient is φ = 22557360.

The previous prime is 45309637. The next prime is 45309679. The reversal of 45309646 is 64690354.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48150 + ... + 49081.

It is an arithmetic number, because the mean of its divisors is an integer number (8532108).

Almost surely, 2^45309646 is an apocalyptic number.

45309646 is a deficient number, since it is larger than the sum of its proper divisors (22947218).

45309646 is a wasteful number, since it uses less digits than its factorization.

45309646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97466.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 45309646 is about 6731.2440157819. The cubic root of 45309646 is about 356.5033017050.

The spelling of 45309646 in words is "forty-five million, three hundred nine thousand, six hundred forty-six".