240302142 has 24 divisors (see below), whose sum is σ = 537451200. Its totient is φ = 77516640.

The previous prime is 240302113. The next prime is 240302147. The reversal of 240302142 is 241203042.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240302147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214767 + ... + 215882.

It is an arithmetic number, because the mean of its divisors is an integer number (22393800).

Almost surely, 2^240302142 is an apocalyptic number.

240302142 is an abundant number, since it is smaller than the sum of its proper divisors (297149058).

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

240302142 is a wasteful number, since it uses less digits than its factorization.

240302142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430688 (or 430685 counting only the distinct ones).

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

The square root of 240302142 is about 15501.6819087478. The cubic root of 240302142 is about 621.7071766766.

Adding to 240302142 its reverse (241203042), we get a palindrome (481505184).

The spelling of 240302142 in words is "two hundred forty million, three hundred two thousand, one hundred forty-two".