1057245646 has 12 divisors (see below), whose sum is σ = 1657818792.
Its totient is φ = 505638716.
The previous prime is 1057245611. The next prime is 1057245647. The reversal of 1057245646 is 6465427501.
It is a happy number.
1057245646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×10572456462 = 2235536711971914632, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1057245599 and 1057245608.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1057245647) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 498586 + ... + 500701.
It is an arithmetic number, because the mean of its divisors is an integer number (138151566).
Almost surely, 21057245646 is an apocalyptic number.
1057245646 is a deficient number, since it is larger than the sum of its proper divisors (600573146).
1057245646 is an equidigital number, since it uses as much as digits as its factorization.
1057245646 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 999335 (or 999312 counting only the distinct ones).
The product of its (nonzero) digits is 201600, while the sum is 40.
The square root of 1057245646 is about 32515.3140227801.
The cubic root of 1057245646 is about 1018.7289197038.
The spelling of 1057245646 in words is "one billion, fifty-seven million, two hundred forty-five thousand, six hundred forty-six".