1003561404 has 12 divisors (see below), whose sum is σ = 2341643304. Its totient is φ = 334520464.

The previous prime is 1003561393. The next prime is 1003561417. The reversal of 1003561404 is 4041653001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41815047 + ... + 41815070.

It is an arithmetic number, because the mean of its divisors is an integer number (195136942).

Almost surely, 2^1003561404 is an apocalyptic number.

It is an amenable number.

1003561404 is an abundant number, since it is smaller than the sum of its proper divisors (1338081900).

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

1003561404 is a wasteful number, since it uses less digits than its factorization.

1003561404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83630124 (or 83630122 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1003561404 is about 31679.0372959786. The cubic root of 1003561404 is about 1001.1857281597.

The spelling of 1003561404 in words is "one billion, three million, five hundred sixty-one thousand, four hundred four".