203460140 has 24 divisors (see below), whose sum is σ = 460133520. Its totient is φ = 75123648.

The previous prime is 203460137. The next prime is 203460203. The reversal of 203460140 is 41064302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 391010 + ... + 391529.

It is an arithmetic number, because the mean of its divisors is an integer number (19172230).

Almost surely, 2^203460140 is an apocalyptic number.

203460140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203460140 is an abundant number, since it is smaller than the sum of its proper divisors (256673380).

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

203460140 is a wasteful number, since it uses less digits than its factorization.

203460140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782561 (or 782559 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 203460140 is about 14263.9454569905. The cubic root of 203460140 is about 588.1567871345.

The spelling of 203460140 in words is "two hundred three million, four hundred sixty thousand, one hundred forty".