140406260 has 24 divisors (see below), whose sum is σ = 307673856. Its totient is φ = 53720480.

The previous prime is 140406173. The next prime is 140406289. The reversal of 140406260 is 62604041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 152156 + ... + 153075.

It is an arithmetic number, because the mean of its divisors is an integer number (12819744).

Almost surely, 2^140406260 is an apocalyptic number.

140406260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140406260 is an abundant number, since it is smaller than the sum of its proper divisors (167267596).

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

140406260 is a wasteful number, since it uses less digits than its factorization.

140406260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305263 (or 305261 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 140406260 is about 11849.3147481194. The cubic root of 140406260 is about 519.7511876721.

The spelling of 140406260 in words is "one hundred forty million, four hundred six thousand, two hundred sixty".