2373557021 has 8 divisors (see below), whose sum is σ = 2595996000. Its totient is φ = 2152228240.

The previous prime is 2373556981. The next prime is 2373557041. The reversal of 2373557021 is 1207553732.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2373557021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2373557041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273071 + ... + 281628.

It is an arithmetic number, because the mean of its divisors is an integer number (324499500).

Almost surely, 2^2373557021 is an apocalyptic number.

It is an amenable number.

2373557021 is a deficient number, since it is larger than the sum of its proper divisors (222438979).

2373557021 is a wasteful number, since it uses less digits than its factorization.

2373557021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555099.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 2373557021 is about 48719.1648224803. The cubic root of 2373557021 is about 1333.9305627742.

The spelling of 2373557021 in words is "two billion, three hundred seventy-three million, five hundred fifty-seven thousand, twenty-one".