124202442 has 64 divisors (see below), whose sum is σ = 323737344. Its totient is φ = 30827520.

The previous prime is 124202431. The next prime is 124202443. The reversal of 124202442 is 244202421.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (124202443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2592 + ... + 15972.

It is an arithmetic number, because the mean of its divisors is an integer number (5058396).

Almost surely, 2^124202442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124202442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161868672).

124202442 is an abundant number, since it is smaller than the sum of its proper divisors (199534902).

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

124202442 is a wasteful number, since it uses less digits than its factorization.

124202442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13423.

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

The square root of 124202442 is about 11144.6149327826. The cubic root of 124202442 is about 498.9343195976.

Subtracting from 124202442 its sum of digits (21), we obtain a palindrome (124202421).

Adding to 124202442 its reverse (244202421), we get a palindrome (368404863).

It can be divided in two parts, 124 and 202442, that added together give a triangular number (202566 = T₆₃₆).

The spelling of 124202442 in words is "one hundred twenty-four million, two hundred two thousand, four hundred forty-two".