140402042 has 8 divisors (see below), whose sum is σ = 229748832. Its totient is φ = 63819100.

The previous prime is 140402033. The next prime is 140402047. The reversal of 140402042 is 240204041.

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

It is a self number, because there is not a number n which added to its sum of digits gives 140402042.

It is not an unprimeable number, because it can be changed into a prime (140402047) 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, 3190934 + ... + 3190977.

It is an arithmetic number, because the mean of its divisors is an integer number (28718604).

Almost surely, 2^140402042 is an apocalyptic number.

140402042 is a deficient number, since it is larger than the sum of its proper divisors (89346790).

140402042 is a wasteful number, since it uses less digits than its factorization.

140402042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6381924.

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

The square root of 140402042 is about 11849.1367618067. The cubic root of 140402042 is about 519.7459829363.

Adding to 140402042 its reverse (240204041), we get a palindrome (380606083).

The spelling of 140402042 in words is "one hundred forty million, four hundred two thousand, forty-two".