1057611996 has 144 divisors (see below), whose sum is σ = 3240007680. Its totient is φ = 284446080.

The previous prime is 1057611977. The next prime is 1057612079. The reversal of 1057611996 is 6991167501.

It is a super-2 number, since 2×1057611996² = 2237086268166208032, 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 47 ways as a sum of consecutive naturals, for example, 287215 + ... + 290873.

Almost surely, 2^1057611996 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 1057611996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1620003840).

1057611996 is an abundant number, since it is smaller than the sum of its proper divisors (2182395684).

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

1057611996 is a wasteful number, since it uses less digits than its factorization.

1057611996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3744 (or 3739 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The square root of 1057611996 is about 32520.9470341809. The cubic root of 1057611996 is about 1018.8465739254.

The spelling of 1057611996 in words is "one billion, fifty-seven million, six hundred eleven thousand, nine hundred ninety-six".