623796540 has 24 divisors (see below), whose sum is σ = 1746630480. Its totient is φ = 166345728.

The previous prime is 623796529. The next prime is 623796541. The reversal of 623796540 is 45697326.

It is a junction number, because it is equal to n+sod(n) for n = 623796492 and 623796501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623796541) 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, 5198245 + ... + 5198364.

It is an arithmetic number, because the mean of its divisors is an integer number (72776270).

Almost surely, 2^623796540 is an apocalyptic number.

623796540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

623796540 is an abundant number, since it is smaller than the sum of its proper divisors (1122833940).

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

623796540 is a wasteful number, since it uses less digits than its factorization.

623796540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10396621 (or 10396619 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 623796540 is about 24975.9192023036. The cubic root of 623796540 is about 854.4388506948.

The spelling of 623796540 in words is "six hundred twenty-three million, seven hundred ninety-six thousand, five hundred forty".