23021445490 has 16 divisors (see below), whose sum is σ = 41736723840. Its totient is φ = 9142328880.

The previous prime is 23021445449. The next prime is 23021445497. The reversal of 23021445490 is 9454412032.

It is not an unprimeable number, because it can be changed into a prime (23021445497) 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, 8279706 + ... + 8282485.

It is an arithmetic number, because the mean of its divisors is an integer number (2608545240).

Almost surely, 2^23021445490 is an apocalyptic number.

23021445490 is a deficient number, since it is larger than the sum of its proper divisors (18715278350).

23021445490 is a wasteful number, since it uses less digits than its factorization.

23021445490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16562337.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 23021445490 in words is "twenty-three billion, twenty-one million, four hundred forty-five thousand, four hundred ninety".