140556398 has 8 divisors (see below), whose sum is σ = 211422960. Its totient is φ = 70082080.

The previous prime is 140556397. The next prime is 140556401. The reversal of 140556398 is 893655041.

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

It is a super-2 number, since 2×140556398² = 39512202037468808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140556397) 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, 97163 + ... + 98598.

It is an arithmetic number, because the mean of its divisors is an integer number (26427870).

Almost surely, 2^140556398 is an apocalyptic number.

140556398 is a deficient number, since it is larger than the sum of its proper divisors (70866562).

140556398 is a wasteful number, since it uses less digits than its factorization.

140556398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196122.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 140556398 is about 11855.6483584830. The cubic root of 140556398 is about 519.9363802838.

The spelling of 140556398 in words is "one hundred forty million, five hundred fifty-six thousand, three hundred ninety-eight".