1089257810 has 16 divisors (see below), whose sum is σ = 1962709056. Its totient is φ = 435248688.

The previous prime is 1089257773. The next prime is 1089257861. The reversal of 1089257810 is 187529801.

It is a super-2 number, since 2×1089257810² = 2372965153291992200, 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, 46652 + ... + 65991.

It is an arithmetic number, because the mean of its divisors is an integer number (122669316).

Almost surely, 2^1089257810 is an apocalyptic number.

1089257810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1089257810 is a deficient number, since it is larger than the sum of its proper divisors (873451246).

1089257810 is a wasteful number, since it uses less digits than its factorization.

1089257810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113617.

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 1089257810 is about 33003.9059809593. The cubic root of 1089257810 is about 1028.9088296674.

The spelling of 1089257810 in words is "one billion, eighty-nine million, two hundred fifty-seven thousand, eight hundred ten".