1085620274 has 4 divisors (see below), whose sum is σ = 1628430414. Its totient is φ = 542810136.

The previous prime is 1085620273. The next prime is 1085620301. The reversal of 1085620274 is 4720265801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4720265801 = 257 ⋅18366793.

It can be written as a sum of positive squares in only one way, i.e., 1066479649 + 19140625 = 32657^2 + 4375^2 .

It is not an unprimeable number, because it can be changed into a prime (1085620273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271405067 + ... + 271405070.

Almost surely, 2^1085620274 is an apocalyptic number.

1085620274 is a deficient number, since it is larger than the sum of its proper divisors (542810140).

1085620274 is an equidigital number, since it uses as much as digits as its factorization.

1085620274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542810139.

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

The square root of 1085620274 is about 32948.7522373762. The cubic root of 1085620274 is about 1027.7622180891.

The spelling of 1085620274 in words is "one billion, eighty-five million, six hundred twenty thousand, two hundred seventy-four".