140106402 has 32 divisors (see below), whose sum is σ = 312312000. Its totient is φ = 46557504.

The previous prime is 140106397. The next prime is 140106413. The reversal of 140106402 is 204601041.

140106402 is a `hidden beast` number, since 14 + 0 + 10 + 640 + 2 = 666.

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14349 + ... + 22047.

It is an arithmetic number, because the mean of its divisors is an integer number (9759750).

Almost surely, 2^140106402 is an apocalyptic number.

140106402 is an abundant number, since it is smaller than the sum of its proper divisors (172205598).

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

140106402 is a wasteful number, since it uses less digits than its factorization.

140106402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8047 (or 8041 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 140106402 is about 11836.6550173603. The cubic root of 140106402 is about 519.3809225302.

Adding to 140106402 its reverse (204601041), we get a palindrome (344707443).

The spelling of 140106402 in words is "one hundred forty million, one hundred six thousand, four hundred two".