1272478 has 8 divisors (see below), whose sum is σ = 1949472. Its totient is φ = 622656.

The previous prime is 1272461. The next prime is 1272539. The reversal of 1272478 is 8742721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6675 + ... + 6862.

It is an arithmetic number, because the mean of its divisors is an integer number (243684).

2^1272478 is an apocalyptic number.

1272478 is a deficient number, since it is larger than the sum of its proper divisors (676994).

1272478 is a wasteful number, since it uses less digits than its factorization.

1272478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13586.

The product of its digits is 6272, while the sum is 31.

The square root of 1272478 is about 1128.0416658971. The cubic root of 1272478 is about 108.3636007472.

The spelling of 1272478 in words is "one million, two hundred seventy-two thousand, four hundred seventy-eight".