1057671840 has 48 divisors (see below), whose sum is σ = 3331667808. Its totient is φ = 282045696.

The previous prime is 1057671833. The next prime is 1057671851. The reversal of 1057671840 is 481767501.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1057671840² = 2237339442257971200, 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, 1101262 + ... + 1102221.

It is an arithmetic number, because the mean of its divisors is an integer number (69409746).

Almost surely, 2^1057671840 is an apocalyptic number.

1057671840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1057671840 is an abundant number, since it is smaller than the sum of its proper divisors (2273995968).

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

1057671840 is a wasteful number, since it uses less digits than its factorization.

1057671840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203501 (or 2203493 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 1057671840 is about 32521.8671050725. The cubic root of 1057671840 is about 1018.8657903944.

The spelling of 1057671840 in words is "one billion, fifty-seven million, six hundred seventy-one thousand, eight hundred forty".