124442040 has 64 divisors (see below), whose sum is σ = 395292960. Its totient is φ = 31232000.

The previous prime is 124441991. The next prime is 124442047. The reversal of 124442040 is 40244421.

It is a junction number, because it is equal to n+sod(n) for n = 124441998 and 124442016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124442047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28461 + ... + 32540.

Almost surely, 2^124442040 is an apocalyptic number.

124442040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124442040 is an abundant number, since it is smaller than the sum of its proper divisors (270850920).

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

124442040 is a wasteful number, since it uses less digits than its factorization.

124442040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61032 (or 61028 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 124442040 is about 11155.3592501542. The cubic root of 124442040 is about 499.2549436669.

Adding to 124442040 its reverse (40244421), we get a palindrome (164686461).

The spelling of 124442040 in words is "one hundred twenty-four million, four hundred forty-two thousand, forty".