623055456 has 48 divisors (see below), whose sum is σ = 1817247600. Its totient is φ = 207684864.

The previous prime is 623055451. The next prime is 623055463. The reversal of 623055456 is 654550326.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 623055456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623055451) 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, 359701 + ... + 361428.

It is an arithmetic number, because the mean of its divisors is an integer number (37859325).

Almost surely, 2^623055456 is an apocalyptic number.

It is an amenable number.

623055456 is an abundant number, since it is smaller than the sum of its proper divisors (1194192144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623055456 is a wasteful number, since it uses less digits than its factorization.

623055456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721148 (or 721134 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 623055456 is about 24961.0788228394. The cubic root of 623055456 is about 854.1003525669.

The spelling of 623055456 in words is "six hundred twenty-three million, fifty-five thousand, four hundred fifty-six".