1065209672 has 64 divisors (see below), whose sum is σ = 2181168000. Its totient is φ = 486137344.

The previous prime is 1065209669. The next prime is 1065209683. The reversal of 1065209672 is 2769025601.

It is a happy number.

It is a super-2 number, since 2×1065209672² = 2269343290644695168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473783 + ... + 476025.

It is an arithmetic number, because the mean of its divisors is an integer number (34080750).

Almost surely, 2^1065209672 is an apocalyptic number.

It is an amenable number.

1065209672 is an abundant number, since it is smaller than the sum of its proper divisors (1115958328).

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

1065209672 is a wasteful number, since it uses less digits than its factorization.

1065209672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390 (or 2386 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 1065209672 is about 32637.5500306013. The cubic root of 1065209672 is about 1021.2804858995.

The spelling of 1065209672 in words is "one billion, sixty-five million, two hundred nine thousand, six hundred seventy-two".