1065220674 has 128 divisors (see below), whose sum is σ = 2647449600. Its totient is φ = 279002880.

The previous prime is 1065220649. The next prime is 1065220691. The reversal of 1065220674 is 4760225601.

It is a super-2 number, since 2×1065220674² = 2269390168634028552, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3845424 + ... + 3845700.

It is an arithmetic number, because the mean of its divisors is an integer number (20683200).

Almost surely, 2^1065220674 is an apocalyptic number.

1065220674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1065220674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1323724800).

1065220674 is an abundant number, since it is smaller than the sum of its proper divisors (1582228926).

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

1065220674 is a wasteful number, since it uses less digits than its factorization.

1065220674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 1065220674 is about 32637.7185783565. The cubic root of 1065220674 is about 1021.2840019801.

The spelling of 1065220674 in words is "one billion, sixty-five million, two hundred twenty thousand, six hundred seventy-four".