423723590 has 8 divisors (see below), whose sum is σ = 762702480. Its totient is φ = 169489432.

The previous prime is 423723551. The next prime is 423723607. The reversal of 423723590 is 95327324.

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

It is a self number, because there is not a number n which added to its sum of digits gives 423723590.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21186170 + ... + 21186189.

It is an arithmetic number, because the mean of its divisors is an integer number (95337810).

Almost surely, 2^423723590 is an apocalyptic number.

423723590 is a deficient number, since it is larger than the sum of its proper divisors (338978890).

423723590 is a wasteful number, since it uses less digits than its factorization.

423723590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42372366.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 423723590 is about 20584.5473596093. The cubic root of 423723590 is about 751.0938645788.

The spelling of 423723590 in words is "four hundred twenty-three million, seven hundred twenty-three thousand, five hundred ninety".