203401672 has 8 divisors (see below), whose sum is σ = 381378150. Its totient is φ = 101700832.

The previous prime is 203401661. The next prime is 203401711. The reversal of 203401672 is 276104302.

203401672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 112656996 + 90744676 = 10614^2 + 9526^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12712597 + ... + 12712612.

Almost surely, 2^203401672 is an apocalyptic number.

It is an amenable number.

203401672 is a deficient number, since it is larger than the sum of its proper divisors (177976478).

203401672 is a wasteful number, since it uses less digits than its factorization.

203401672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25425215 (or 25425211 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 203401672 is about 14261.8958066591. The cubic root of 203401672 is about 588.1004425264.

Adding to 203401672 its reverse (276104302), we get a palindrome (479505974).

The spelling of 203401672 in words is "two hundred three million, four hundred one thousand, six hundred seventy-two".