124423402 has 4 divisors (see below), whose sum is σ = 186635106. Its totient is φ = 62211700.

The previous prime is 124423393. The next prime is 124423421. The reversal of 124423402 is 204324421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 124300201 + 123201 = 11149^2 + 351^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31105849 + ... + 31105852.

Almost surely, 2^124423402 is an apocalyptic number.

124423402 is a deficient number, since it is larger than the sum of its proper divisors (62211704).

124423402 is an equidigital number, since it uses as much as digits as its factorization.

124423402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62211703.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 124423402 is about 11154.5238356462. The cubic root of 124423402 is about 499.2300175293.

Adding to 124423402 its reverse (204324421), we get a palindrome (328747823).

The spelling of 124423402 in words is "one hundred twenty-four million, four hundred twenty-three thousand, four hundred two".