240123442 has 16 divisors (see below), whose sum is σ = 388147032. Its totient is φ = 110753280.

The previous prime is 240123437. The next prime is 240123449. The reversal of 240123442 is 244321042.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 238733401 + 1390041 = 15451^2 + 1179^2 .

It is not an unprimeable number, because it can be changed into a prime (240123449) 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, 77442 + ... + 80482.

Almost surely, 2^240123442 is an apocalyptic number.

240123442 is a deficient number, since it is larger than the sum of its proper divisors (148023590).

240123442 is a wasteful number, since it uses less digits than its factorization.

240123442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6093.

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

The square root of 240123442 is about 15495.9169460862. The cubic root of 240123442 is about 621.5530282055.

Adding to 240123442 its reverse (244321042), we get a palindrome (484444484).

The spelling of 240123442 in words is "two hundred forty million, one hundred twenty-three thousand, four hundred forty-two".