124342400040 has 32 divisors (see below), whose sum is σ = 373027200480. Its totient is φ = 33157973312.

The previous prime is 124342400029. The next prime is 124342400041. The reversal of 124342400040 is 40004243421.

It is a happy number.

It is a super-2 number, since 2×124342400040² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (124342400041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518093214 + ... + 518093453.

It is an arithmetic number, because the mean of its divisors is an integer number (11657100015).

Almost surely, 2^124342400040 is an apocalyptic number.

124342400040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124342400040 is an abundant number, since it is smaller than the sum of its proper divisors (248684800440).

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

124342400040 is a wasteful number, since it uses less digits than its factorization.

124342400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036186681 (or 1036186677 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 124342400040 its reverse (40004243421), we get a palindrome (164346643461).

The spelling of 124342400040 in words is "one hundred twenty-four billion, three hundred forty-two million, four hundred thousand, forty".