1057840202 has 4 divisors (see below), whose sum is σ = 1586760306. Its totient is φ = 528920100.

The previous prime is 1057840183. The next prime is 1057840241. The reversal of 1057840202 is 2020487501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2020487501 = 251 ⋅8049751.

It can be written as a sum of positive squares in only one way, i.e., 1000520161 + 57320041 = 31631^2 + 7571^2 .

It is a super-2 number, since 2×1057840202² = 2238051785934801608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264460049 + ... + 264460052.

Almost surely, 2^1057840202 is an apocalyptic number.

1057840202 is a deficient number, since it is larger than the sum of its proper divisors (528920104).

1057840202 is an equidigital number, since it uses as much as digits as its factorization.

1057840202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528920103.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 1057840202 is about 32524.4554450955. The cubic root of 1057840202 is about 1018.9198491218.

The spelling of 1057840202 in words is "one billion, fifty-seven million, eight hundred forty thousand, two hundred two".