124689808 has 40 divisors (see below), whose sum is σ = 255340800. Its totient is φ = 58865664.

The previous prime is 124689793. The next prime is 124689823. The reversal of 124689808 is 808986421.

It is an interprime number because it is at equal distance from previous prime (124689793) and next prime (124689823).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26928 + ... + 31216.

It is an arithmetic number, because the mean of its divisors is an integer number (6383520).

Almost surely, 2^124689808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124689808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127670400).

124689808 is an abundant number, since it is smaller than the sum of its proper divisors (130650992).

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

124689808 is a wasteful number, since it uses less digits than its factorization.

124689808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399 (or 4393 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 124689808 is about 11166.4590627468. The cubic root of 124689808 is about 499.5860680820.

The spelling of 124689808 in words is "one hundred twenty-four million, six hundred eighty-nine thousand, eight hundred eight".