124140400 has 60 divisors (see below), whose sum is σ = 299324592. Its totient is φ = 49477120.

The previous prime is 124140397. The next prime is 124140449. The reversal of 124140400 is 4041421.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200892 + ... + 201508.

Almost surely, 2^124140400 is an apocalyptic number.

124140400 is a gapful number since it is divisible by the number (10) 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 124140400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149662296).

124140400 is an abundant number, since it is smaller than the sum of its proper divisors (175184192).

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

124140400 is a wasteful number, since it uses less digits than its factorization.

124140400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 124140400 is about 11141.8310882906. The cubic root of 124140400 is about 498.8512293399.

Adding to 124140400 its reverse (4041421), we get a palindrome (128181821).

The spelling of 124140400 in words is "one hundred twenty-four million, one hundred forty thousand, four hundred".