1053581904 has 120 divisors (see below), whose sum is σ = 3089198112. Its totient is φ = 347587200.

The previous prime is 1053581899. The next prime is 1053581929. The reversal of 1053581904 is 4091853501.

It is a super-2 number, since 2×1053581904² = 2220069656872530432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 391347 + ... + 394029.

Almost surely, 2^1053581904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1053581904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544599056).

1053581904 is an abundant number, since it is smaller than the sum of its proper divisors (2035616208).

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

1053581904 is a wasteful number, since it uses less digits than its factorization.

1053581904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807 (or 2789 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 1053581904 is about 32458.9264147784. The cubic root of 1053581904 is about 1017.5508019557.

The spelling of 1053581904 in words is "one billion, fifty-three million, five hundred eighty-one thousand, nine hundred four".