1057440276 has 36 divisors (see below), whose sum is σ = 2692216800. Its totient is φ = 349942608.

The previous prime is 1057440257. The next prime is 1057440277. The reversal of 1057440276 is 6720447501.

1057440276 is a `hidden beast` number, since 10 + 574 + 4 + 0 + 2 + 76 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1057440276² = 2236359874613912352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1057440276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057440277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100656 + ... + 110663.

It is an arithmetic number, because the mean of its divisors is an integer number (74783800).

Almost surely, 2^1057440276 is an apocalyptic number.

It is an amenable number.

1057440276 is an abundant number, since it is smaller than the sum of its proper divisors (1634776524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1057440276 is a wasteful number, since it uses less digits than its factorization.

1057440276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211468 (or 211463 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 1057440276 is about 32518.3067824879. The cubic root of 1057440276 is about 1018.7914290001.

Adding to 1057440276 its reverse (6720447501), we get a palindrome (7777887777).

The spelling of 1057440276 in words is "one billion, fifty-seven million, four hundred forty thousand, two hundred seventy-six".