140342402 has 8 divisors (see below), whose sum is σ = 210620736. Its totient is φ = 70135492.

The previous prime is 140342401. The next prime is 140342437. The reversal of 140342402 is 204243041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (140342401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12638 + ... + 20985.

It is an arithmetic number, because the mean of its divisors is an integer number (26327592).

Almost surely, 2^140342402 is an apocalyptic number.

140342402 is a deficient number, since it is larger than the sum of its proper divisors (70278334).

140342402 is a wasteful number, since it uses less digits than its factorization.

140342402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35712.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 140342402 is about 11846.6198554693. The cubic root of 140342402 is about 519.6723799220.

Adding to 140342402 its reverse (204243041), we get a palindrome (344585443).

The spelling of 140342402 in words is "one hundred forty million, three hundred forty-two thousand, four hundred two".