1057995984 has 20 divisors (see below), whose sum is σ = 2733156416. Its totient is φ = 352665312.

The previous prime is 1057995977. The next prime is 1057995997. The reversal of 1057995984 is 4895997501.

It is a super-2 number, since 2×1057995984² = 2238711004320256512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11020744 + ... + 11020839.

Almost surely, 2^1057995984 is an apocalyptic number.

It is an amenable number.

1057995984 is an abundant number, since it is smaller than the sum of its proper divisors (1675160432).

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

1057995984 is a wasteful number, since it uses less digits than its factorization.

1057995984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22041594 (or 22041588 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 57.

The square root of 1057995984 is about 32526.8502010262. The cubic root of 1057995984 is about 1018.9698634751.

The spelling of 1057995984 in words is "one billion, fifty-seven million, nine hundred ninety-five thousand, nine hundred eighty-four".