140402402 has 16 divisors (see below), whose sum is σ = 242308800. Its totient is φ = 59767728.

The previous prime is 140402401. The next prime is 140402413. The reversal of 140402402 is 204204041.

It is not an unprimeable number, because it can be changed into a prime (140402401) 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, 31568 + ... + 35739.

It is an arithmetic number, because the mean of its divisors is an integer number (15144300).

Almost surely, 2^140402402 is an apocalyptic number.

140402402 is a deficient number, since it is larger than the sum of its proper divisors (101906398).

140402402 is a wasteful number, since it uses less digits than its factorization.

140402402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67465.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 140402402 is about 11849.1519527770. The cubic root of 140402402 is about 519.7464271568.

Adding to 140402402 its reverse (204204041), we get a palindrome (344606443).

The spelling of 140402402 in words is "one hundred forty million, four hundred two thousand, four hundred two".