1057211630 has 8 divisors (see below), whose sum is σ = 1902980952. Its totient is φ = 422884648.

The previous prime is 1057211599. The next prime is 1057211647. The reversal of 1057211630 is 361127501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1057211630² = 2235392861214513800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1057211630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52860572 + ... + 52860591.

It is an arithmetic number, because the mean of its divisors is an integer number (237872619).

Almost surely, 2^1057211630 is an apocalyptic number.

1057211630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057211630 is a deficient number, since it is larger than the sum of its proper divisors (845769322).

1057211630 is a wasteful number, since it uses less digits than its factorization.

1057211630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105721170.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1057211630 is about 32514.7909419698. The cubic root of 1057211630 is about 1018.7179940012.

The spelling of 1057211630 in words is "one billion, fifty-seven million, two hundred eleven thousand, six hundred thirty".