423024557 has 4 divisors (see below), whose sum is σ = 423715260. Its totient is φ = 422333856.

The previous prime is 423024551. The next prime is 423024571. The reversal of 423024557 is 755420324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 156225001 + 266799556 = 12499^2 + 16334^2 .

It is a cyclic number.

It is not a de Polignac number, because 423024557 - 2¹⁰ = 423023533 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 (423024551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344432 + ... + 345657.

It is an arithmetic number, because the mean of its divisors is an integer number (105928815).

Almost surely, 2^423024557 is an apocalyptic number.

It is an amenable number.

423024557 is a deficient number, since it is larger than the sum of its proper divisors (690703).

423024557 is an equidigital number, since it uses as much as digits as its factorization.

423024557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690702.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 423024557 is about 20567.5607936381. The cubic root of 423024557 is about 750.6806011522.

The spelling of 423024557 in words is "four hundred twenty-three million, twenty-four thousand, five hundred fifty-seven".