140687420 has 12 divisors (see below), whose sum is σ = 295443624. Its totient is φ = 56274960.

The previous prime is 140687413. The next prime is 140687429. The reversal of 140687420 is 24786041.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140687429) 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, 3517166 + ... + 3517205.

It is an arithmetic number, because the mean of its divisors is an integer number (24620302).

Almost surely, 2^140687420 is an apocalyptic number.

140687420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140687420 is an abundant number, since it is smaller than the sum of its proper divisors (154756204).

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

140687420 is a wasteful number, since it uses less digits than its factorization.

140687420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7034380 (or 7034378 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 140687420 is about 11861.1727919291. The cubic root of 140687420 is about 520.0978859118.

The spelling of 140687420 in words is "one hundred forty million, six hundred eighty-seven thousand, four hundred twenty".