2445072621 has 16 divisors (see below), whose sum is σ = 3379497600. Its totient is φ = 1570580928.

The previous prime is 2445072599. The next prime is 2445072647. The reversal of 2445072621 is 1262705442.

It is not a de Polignac number, because 2445072621 - 2¹⁹ = 2444548333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445072521) 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, 13515 + ... + 71223.

It is an arithmetic number, because the mean of its divisors is an integer number (211218600).

Almost surely, 2^2445072621 is an apocalyptic number.

It is an amenable number.

2445072621 is a deficient number, since it is larger than the sum of its proper divisors (934424979).

2445072621 is a wasteful number, since it uses less digits than its factorization.

2445072621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58228.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 2445072621 is about 49447.6755874328. The cubic root of 2445072621 is about 1347.1953884563.

The spelling of 2445072621 in words is "two billion, four hundred forty-five million, seventy-two thousand, six hundred twenty-one".