1057912390 has 8 divisors (see below), whose sum is σ = 1904242320. Its totient is φ = 423164952.

The previous prime is 1057912369. The next prime is 1057912403. The reversal of 1057912390 is 932197501.

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

It is a super-2 number, since 2×1057912390² = 2238357249831024200, which contains 22 as substring.

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, 52895610 + ... + 52895629.

It is an arithmetic number, because the mean of its divisors is an integer number (238030290).

Almost surely, 2^1057912390 is an apocalyptic number.

1057912390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057912390 is a deficient number, since it is larger than the sum of its proper divisors (846329930).

1057912390 is a wasteful number, since it uses less digits than its factorization.

1057912390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105791246.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 1057912390 is about 32525.5651757199. The cubic root of 1057912390 is about 1018.9430259409.

The spelling of 1057912390 in words is "one billion, fifty-seven million, nine hundred twelve thousand, three hundred ninety".