124001442 has 28 divisors (see below), whose sum is σ = 278878950. Its totient is φ = 41333328.

The previous prime is 124001431. The next prime is 124001443. The reversal of 124001442 is 244100421.

It can be written as a sum of positive squares in only one way, i.e., 106936281 + 17065161 = 10341^2 + 4131^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (124001443) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 41067 + ... + 43982.

Almost surely, 2^124001442 is an apocalyptic number.

124001442 is an abundant number, since it is smaller than the sum of its proper divisors (154877508).

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

124001442 is an frugal number, since it uses more digits than its factorization.

124001442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85069 (or 85054 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 124001442 is about 11135.5934731832. The cubic root of 124001442 is about 498.6650282061.

Adding to 124001442 its reverse (244100421), we get a palindrome (368101863).

The spelling of 124001442 in words is "one hundred twenty-four million, one thousand, four hundred forty-two".