623886240 has 48 divisors (see below), whose sum is σ = 1965243168. Its totient is φ = 166369536.

The previous prime is 623886187. The next prime is 623886257. The reversal of 623886240 is 42688326.

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

It is a super-2 number, since 2×623886240² = 778468080922675200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649402 + ... + 650361.

It is an arithmetic number, because the mean of its divisors is an integer number (40942566).

Almost surely, 2^623886240 is an apocalyptic number.

623886240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

623886240 is an abundant number, since it is smaller than the sum of its proper divisors (1341356928).

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

623886240 is a wasteful number, since it uses less digits than its factorization.

623886240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299781 (or 1299773 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 623886240 is about 24977.7148674574. The cubic root of 623886240 is about 854.4798039473.

The spelling of 623886240 in words is "six hundred twenty-three million, eight hundred eighty-six thousand, two hundred forty".