1290472 has 8 divisors (see below), whose sum is σ = 2419650. Its totient is φ = 645232.

The previous prime is 1290469. The next prime is 1290491. The reversal of 1290472 is 2740921.

It can be written as a sum of positive squares in only one way, i.e., 1196836 + 93636 = 1094^2 + 306^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80647 + ... + 80662.

2^1290472 is an apocalyptic number.

It is an amenable number.

1290472 is a deficient number, since it is larger than the sum of its proper divisors (1129178).

1290472 is a wasteful number, since it uses less digits than its factorization.

1290472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161315 (or 161311 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1290472 is about 1135.9894365706. The cubic root of 1290472 is about 108.8719985525.

The spelling of 1290472 in words is "one million, two hundred ninety thousand, four hundred seventy-two".