45969621 has 16 divisors (see below), whose sum is σ = 63897600. Its totient is φ = 29363760.

The previous prime is 45969613. The next prime is 45969641. The reversal of 45969621 is 12696954.

It is a happy number.

It is not a de Polignac number, because 45969621 - 2³ = 45969613 is a prime.

It is a super-2 number, since 2×45969621² = 4226412109767282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45969601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7180 + ... + 11978.

It is an arithmetic number, because the mean of its divisors is an integer number (3993600).

Almost surely, 2^45969621 is an apocalyptic number.

It is an amenable number.

45969621 is a deficient number, since it is larger than the sum of its proper divisors (17927979).

45969621 is a wasteful number, since it uses less digits than its factorization.

45969621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936.

The product of its digits is 116640, while the sum is 42.

The square root of 45969621 is about 6780.0900436499. The cubic root of 45969621 is about 358.2258933466.

The spelling of 45969621 in words is "forty-five million, nine hundred sixty-nine thousand, six hundred twenty-one".