445290023 has 8 divisors (see below), whose sum is σ = 473109120. Its totient is φ = 417909240.

The previous prime is 445290007. The next prime is 445290031. The reversal of 445290023 is 320092544.

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

It is a cyclic number.

It is not a de Polignac number, because 445290023 - 2⁴ = 445290007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445290073) 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, 107483 + ... + 111548.

It is an arithmetic number, because the mean of its divisors is an integer number (59138640).

Almost surely, 2^445290023 is an apocalyptic number.

445290023 is a deficient number, since it is larger than the sum of its proper divisors (27819097).

445290023 is a wasteful number, since it uses less digits than its factorization.

445290023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219157.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 445290023 is about 21101.8961944182. The cubic root of 445290023 is about 763.6264946729.

The spelling of 445290023 in words is "four hundred forty-five million, two hundred ninety thousand, twenty-three".