124263640 has 32 divisors (see below), whose sum is σ = 279916560. Its totient is φ = 49648000.

The previous prime is 124263611. The next prime is 124263647. The reversal of 124263640 is 46362421.

It is a junction number, because it is equal to n+sod(n) for n = 124263599 and 124263608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124263647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56970 + ... + 59110.

Almost surely, 2^124263640 is an apocalyptic number.

124263640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124263640 is an abundant number, since it is smaller than the sum of its proper divisors (155652920).

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

124263640 is a wasteful number, since it uses less digits than its factorization.

124263640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603 (or 3599 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 124263640 is about 11147.3602256319. The cubic root of 124263640 is about 499.0162524174.

It can be divided in two parts, 1242636 and 40, that added together give a triangular number (1242676 = T₁₅₇₆).

The spelling of 124263640 in words is "one hundred twenty-four million, two hundred sixty-three thousand, six hundred forty".