1090557904 has 20 divisors (see below), whose sum is σ = 2120998176. Its totient is φ = 543203552.

The previous prime is 1090557901. The next prime is 1090557907. The reversal of 1090557904 is 4097550901.

It is an interprime number because it is at equal distance from previous prime (1090557901) and next prime (1090557907).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090557901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125374 + ... + 133789.

Almost surely, 2^1090557904 is an apocalyptic number.

It is an amenable number.

1090557904 is a deficient number, since it is larger than the sum of its proper divisors (1030440272).

1090557904 is a wasteful number, since it uses less digits than its factorization.

1090557904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259434 (or 259428 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 1090557904 is about 33023.5961700115. The cubic root of 1090557904 is about 1029.3180215461.

The spelling of 1090557904 in words is "one billion, ninety million, five hundred fifty-seven thousand, nine hundred four".