45933021 has 16 divisors (see below), whose sum is σ = 69889600. Its totient is φ = 29793744.

The previous prime is 45933007. The next prime is 45933023. The reversal of 45933021 is 12033954.

It is not a de Polignac number, because 45933021 - 2⁷ = 45932893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45933023) 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, 21991 + ... + 23988.

It is an arithmetic number, because the mean of its divisors is an integer number (4368100).

Almost surely, 2^45933021 is an apocalyptic number.

It is an amenable number.

45933021 is a deficient number, since it is larger than the sum of its proper divisors (23956579).

45933021 is a wasteful number, since it uses less digits than its factorization.

45933021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46025 (or 46019 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 45933021 is about 6777.3904270006. The cubic root of 45933021 is about 358.1307975816.

Adding to 45933021 its reverse (12033954), we get a palindrome (57966975).

The spelling of 45933021 in words is "forty-five million, nine hundred thirty-three thousand, twenty-one".