140679998 has 12 divisors (see below), whose sum is σ = 224164032. Its totient is φ = 66202080.

The previous prime is 140679991. The next prime is 140680019. The reversal of 140679998 is 899976041.

It is a happy number.

140679998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140679991) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121118 + ... + 122273.

It is an arithmetic number, because the mean of its divisors is an integer number (18680336).

Almost surely, 2^140679998 is an apocalyptic number.

140679998 is a deficient number, since it is larger than the sum of its proper divisors (83484034).

140679998 is a wasteful number, since it uses less digits than its factorization.

140679998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243427 (or 243410 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 140679998 is about 11860.8599182353. The cubic root of 140679998 is about 520.0887397864.

The spelling of 140679998 in words is "one hundred forty million, six hundred seventy-nine thousand, nine hundred ninety-eight".