1057222490 has 16 divisors (see below), whose sum is σ = 1910027520. Its totient is φ = 421327440.

The previous prime is 1057222487. The next prime is 1057222493. The reversal of 1057222490 is 942227501.

It is an interprime number because it is at equal distance from previous prime (1057222487) and next prime (1057222493).

It is a super-2 number, since 2×1057222490² = 2235438786723600200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057222493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192350 + ... + 197769.

It is an arithmetic number, because the mean of its divisors is an integer number (119376720).

Almost surely, 2^1057222490 is an apocalyptic number.

1057222490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057222490 is a deficient number, since it is larger than the sum of its proper divisors (852805030).

1057222490 is a wasteful number, since it uses less digits than its factorization.

1057222490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390397.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1057222490 is about 32514.9579424609. The cubic root of 1057222490 is about 1018.7214821831.

Adding to 1057222490 its reverse (942227501), we get a palindrome (1999449991).

The spelling of 1057222490 in words is "one billion, fifty-seven million, two hundred twenty-two thousand, four hundred ninety".