623414880 has 240 divisors, whose sum is σ = 2400696144. Its totient is φ = 151096320.

The previous prime is 623414873. The next prime is 623414899. The reversal of 623414880 is 88414326.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×623414880² = 777292225210828800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 140374 + ... + 144746.

Almost surely, 2^623414880 is an apocalyptic number.

623414880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623414880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1200348072).

623414880 is an abundant number, since it is smaller than the sum of its proper divisors (1777281264).

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

623414880 is a wasteful number, since it uses less digits than its factorization.

623414880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4411 (or 4394 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 623414880 is about 24968.2774736264. The cubic root of 623414880 is about 854.2645568662.

The spelling of 623414880 in words is "six hundred twenty-three million, four hundred fourteen thousand, eight hundred eighty".