1057218434 has 4 divisors (see below), whose sum is σ = 1585827654. Its totient is φ = 528609216.

The previous prime is 1057218431. The next prime is 1057218439. The reversal of 1057218434 is 4348127501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 921426025 + 135792409 = 30355^2 + 11653^2 .

It is a super-2 number, since 2×1057218434² = 2235421634378824712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1057218394 and 1057218403.

It is not an unprimeable number, because it can be changed into a prime (1057218431) by changing a digit.

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 as a sum of consecutive naturals, namely, 264304607 + ... + 264304610.

Almost surely, 2^1057218434 is an apocalyptic number.

1057218434 is a deficient number, since it is larger than the sum of its proper divisors (528609220).

1057218434 is an equidigital number, since it uses as much as digits as its factorization.

1057218434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528609219.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 1057218434 is about 32514.8955711071. The cubic root of 1057218434 is about 1018.7201794174.

The spelling of 1057218434 in words is "one billion, fifty-seven million, two hundred eighteen thousand, four hundred thirty-four".