203504455340 has 24 divisors (see below), whose sum is σ = 427443382800. Its totient is φ = 81385777088.

The previous prime is 203504455327. The next prime is 203504455367. The reversal of 203504455340 is 43554405302.

It is a self number, because there is not a number n which added to its sum of digits gives 203504455340.

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, 895787 + ... + 1099746.

It is an arithmetic number, because the mean of its divisors is an integer number (17810140950).

Almost surely, 2^203504455340 is an apocalyptic number.

203504455340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203504455340 is an abundant number, since it is smaller than the sum of its proper divisors (223938927460).

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

203504455340 is a wasteful number, since it uses less digits than its factorization.

203504455340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000641 (or 2000639 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

The spelling of 203504455340 in words is "two hundred three billion, five hundred four million, four hundred fifty-five thousand, three hundred forty".