124145440 has 48 divisors (see below), whose sum is σ = 298287360. Its totient is φ = 48812800.

The previous prime is 124145401. The next prime is 124145501. The reversal of 124145440 is 44541421.

It is an unprimeable number.

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, 2865 + ... + 16015.

It is an arithmetic number, because the mean of its divisors is an integer number (6214320).

Almost surely, 2^124145440 is an apocalyptic number.

124145440 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 124145440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149143680).

124145440 is an abundant number, since it is smaller than the sum of its proper divisors (174141920).

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

124145440 is a wasteful number, since it uses less digits than its factorization.

124145440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13225 (or 13217 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 124145440 is about 11142.0572606678. The cubic root of 124145440 is about 498.8579802343.

Adding to 124145440 its reverse (44541421), we get a palindrome (168686861).

The spelling of 124145440 in words is "one hundred twenty-four million, one hundred forty-five thousand, four hundred forty".