1081901404 has 6 divisors (see below), whose sum is σ = 1893327464. Its totient is φ = 540950700.

The previous prime is 1081901389. The next prime is 1081901411. The reversal of 1081901404 is 4041091801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135237672 + ... + 135237679.

Almost surely, 2^1081901404 is an apocalyptic number.

It is an amenable number.

1081901404 is a deficient number, since it is larger than the sum of its proper divisors (811426060).

1081901404 is a wasteful number, since it uses less digits than its factorization.

1081901404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270475355 (or 270475353 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1081901404 is about 32892.2696693311. The cubic root of 1081901404 is about 1026.5873178025.

The spelling of 1081901404 in words is "one billion, eighty-one million, nine hundred one thousand, four hundred four".