45204621 has 16 divisors (see below), whose sum is σ = 75145728. Its totient is φ = 23482800.

The previous prime is 45204583. The next prime is 45204623. The reversal of 45204621 is 12640254.

It is not a de Polignac number, because 45204621 - 2¹³ = 45196429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45204591 and 45204600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45204623) 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, 97615 + ... + 98076.

It is an arithmetic number, because the mean of its divisors is an integer number (4696608).

Almost surely, 2^45204621 is an apocalyptic number.

It is an amenable number.

45204621 is a deficient number, since it is larger than the sum of its proper divisors (29941107).

45204621 is a wasteful number, since it uses less digits than its factorization.

45204621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195712.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 45204621 is about 6723.4381829537. The cubic root of 45204621 is about 356.2276376237.

Adding to 45204621 its reverse (12640254), we get a palindrome (57844875).

The spelling of 45204621 in words is "forty-five million, two hundred four thousand, six hundred twenty-one".