140202042 has 16 divisors (see below), whose sum is σ = 287243712. Its totient is φ = 45594080.

The previous prime is 140202019. The next prime is 140202047. The reversal of 140202042 is 240202041.

It is a super-2 number, since 2×140202042² = 39313225161939528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140202047) 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, 284718 + ... + 285209.

It is an arithmetic number, because the mean of its divisors is an integer number (17952732).

Almost surely, 2^140202042 is an apocalyptic number.

140202042 is an abundant number, since it is smaller than the sum of its proper divisors (147041670).

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

140202042 is a wasteful number, since it uses less digits than its factorization.

140202042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569973.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 140202042 is about 11840.6943208580. The cubic root of 140202042 is about 519.4990762862.

Adding to 140202042 its reverse (240202041), we get a palindrome (380404083).

Subtracting 140202042 from its reverse (240202041), we obtain a palindrome (99999999).

The spelling of 140202042 in words is "one hundred forty million, two hundred two thousand, forty-two".