1057240283 has 6 divisors (see below), whose sum is σ = 1162090692. Its totient is φ = 961127420.

The previous prime is 1057240279. The next prime is 1057240291. The reversal of 1057240283 is 3820427501.

It is not a de Polignac number, because 1057240283 - 2² = 1057240279 is a prime.

It is a super-2 number, since 2×1057240283² = 2235514031995840178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1057240243) 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, 4368641 + ... + 4368882.

It is an arithmetic number, because the mean of its divisors is an integer number (193681782).

Almost surely, 2^1057240283 is an apocalyptic number.

1057240283 is a deficient number, since it is larger than the sum of its proper divisors (104850409).

1057240283 is an equidigital number, since it uses as much as digits as its factorization.

1057240283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8737545 (or 8737534 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 1057240283 is about 32515.2315538426. The cubic root of 1057240283 is about 1018.7271971611.

Adding to 1057240283 its reverse (3820427501), we get a palindrome (4877667784).

The spelling of 1057240283 in words is "one billion, fifty-seven million, two hundred forty thousand, two hundred eighty-three".