124402340 has 12 divisors (see below), whose sum is σ = 261244956. Its totient is φ = 49760928.

The previous prime is 124402339. The next prime is 124402361. The reversal of 124402340 is 43204421.

It can be written as a sum of positive squares in 2 ways, for example, as 99161764 + 25240576 = 9958^2 + 5024^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6220117 = 124402340 / (1 + 2 + 4 + 4 + 0 + 2 + 3 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3110039 + ... + 3110078.

It is an arithmetic number, because the mean of its divisors is an integer number (21770413).

Almost surely, 2^124402340 is an apocalyptic number.

124402340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124402340 is an abundant number, since it is smaller than the sum of its proper divisors (136842616).

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

124402340 is a wasteful number, since it uses less digits than its factorization.

124402340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220126 (or 6220124 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 124402340 is about 11153.5796944299. The cubic root of 124402340 is about 499.2018465802.

Adding to 124402340 its reverse (43204421), we get a palindrome (167606761).

The spelling of 124402340 in words is "one hundred twenty-four million, four hundred two thousand, three hundred forty".