140172408 has 24 divisors (see below), whose sum is σ = 379633800. Its totient is φ = 46724112.

The previous prime is 140172401. The next prime is 140172413. The reversal of 140172408 is 804271041.

140172408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140172401) 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, 973348 + ... + 973491.

It is an arithmetic number, because the mean of its divisors is an integer number (15818075).

Almost surely, 2^140172408 is an apocalyptic number.

140172408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140172408 is an abundant number, since it is smaller than the sum of its proper divisors (239461392).

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

140172408 is a wasteful number, since it uses less digits than its factorization.

140172408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946851 (or 1946844 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 140172408 is about 11839.4428922986. The cubic root of 140172408 is about 519.4624721584.

The spelling of 140172408 in words is "one hundred forty million, one hundred seventy-two thousand, four hundred eight".