240213042 has 12 divisors (see below), whose sum is σ = 520461630. Its totient is φ = 80071008.

The previous prime is 240213041. The next prime is 240213049. The reversal of 240213042 is 240312042.

It can be written as a sum of positive squares in only one way, i.e., 233447841 + 6765201 = 15279^2 + 2601^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 13345169 = 240213042 / (2 + 4 + 0 + 2 + 1 + 3 + 0 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (240213041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6672567 + ... + 6672602.

Almost surely, 2^240213042 is an apocalyptic number.

240213042 is an abundant number, since it is smaller than the sum of its proper divisors (280248588).

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

240213042 is a wasteful number, since it uses less digits than its factorization.

240213042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13345177 (or 13345174 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 240213042 is about 15498.8077605989. The cubic root of 240213042 is about 621.6303276498.

Adding to 240213042 its reverse (240312042), we get a palindrome (480525084).

The spelling of 240213042 in words is "two hundred forty million, two hundred thirteen thousand, forty-two".