1272492 has 36 divisors (see below), whose sum is σ = 3465280. Its totient is φ = 391392.

The previous prime is 1272461. The next prime is 1272539. The reversal of 1272492 is 2942721.

It is a tau number, because it is divible by the number of its divisors (36).

It is a plaindrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 892 + ... + 1827.

2^1272492 is an apocalyptic number.

1272492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1272492 is an abundant number, since it is smaller than the sum of its proper divisors (2192788).

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

1272492 is a wasteful number, since it uses less digits than its factorization.

1272492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742 (or 2737 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1272492 is about 1128.0478713246. The cubic root of 1272492 is about 108.3639981568.

It can be divided in two parts, 1272 and 492, that added together give a square (1764 = 42²).

The spelling of 1272492 in words is "one million, two hundred seventy-two thousand, four hundred ninety-two".