140420688 has 40 divisors (see below), whose sum is σ = 364196928. Its totient is φ = 46620672.

The previous prime is 140420627. The next prime is 140420713. The reversal of 140420688 is 886024041.

It is a super-3 number, since 3×140420688³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6645 + ... + 18027.

Almost surely, 2^140420688 is an apocalyptic number.

It is an amenable number.

140420688 is an abundant number, since it is smaller than the sum of its proper divisors (223776240).

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

140420688 is a wasteful number, since it uses less digits than its factorization.

140420688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11651 (or 11645 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 140420688 is about 11849.9235440572. The cubic root of 140420688 is about 519.7689900913.

The spelling of 140420688 in words is "one hundred forty million, four hundred twenty thousand, six hundred eighty-eight".