203404012 has 24 divisors (see below), whose sum is σ = 413480480. Its totient is φ = 85743360.

The previous prime is 203404009. The next prime is 203404079. The reversal of 203404012 is 210404302.

It is a super-2 number, since 2×203404012² = 82746384195392288, which contains 22 as substring.

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, 57837 + ... + 61252.

Almost surely, 2^203404012 is an apocalyptic number.

It is an amenable number.

203404012 is an abundant number, since it is smaller than the sum of its proper divisors (210076468).

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

203404012 is a wasteful number, since it uses less digits than its factorization.

203404012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119161 (or 119159 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 203404012 is about 14261.9778432025. The cubic root of 203404012 is about 588.1026977516.

Adding to 203404012 its reverse (210404302), we get a palindrome (413808314).

The spelling of 203404012 in words is "two hundred three million, four hundred four thousand, twelve".