1061890474 has 4 divisors (see below), whose sum is σ = 1592835714. Its totient is φ = 530945236.

The previous prime is 1061890433. The next prime is 1061890483. The reversal of 1061890474 is 4740981601.

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., 1021249849 + 40640625 = 31957^2 + 6375^2 .

It is a super-2 number, since 2×1061890474² = 2255222757543889352, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 265472617 + ... + 265472620.

Almost surely, 2^1061890474 is an apocalyptic number.

1061890474 is a deficient number, since it is larger than the sum of its proper divisors (530945240).

1061890474 is an equidigital number, since it uses as much as digits as its factorization.

1061890474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530945239.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 1061890474 is about 32586.6609826782. The cubic root of 1061890474 is about 1020.2186107107.

The spelling of 1061890474 in words is "one billion, sixty-one million, eight hundred ninety thousand, four hundred seventy-four".