1274409 has 6 divisors (see below), whose sum is σ = 1840826. Its totient is φ = 849600.

The previous prime is 1274401. The next prime is 1274411. The reversal of 1274409 is 9044721.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1272384 + 2025 = 1128^2 + 45^2 .

It is not a de Polignac number, because 1274409 - 2³ = 1274401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1274401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70792 + ... + 70809.

2^1274409 is an apocalyptic number.

It is an amenable number.

1274409 is a deficient number, since it is larger than the sum of its proper divisors (566417).

1274409 is a wasteful number, since it uses less digits than its factorization.

1274409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141607 (or 141604 counting only the distinct ones).

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

The square root of 1274409 is about 1128.8972495316. The cubic root of 1274409 is about 108.4183873803.

It can be divided in two parts, 127440 and 9, that added together give a square (127449 = 357²).

The spelling of 1274409 in words is "one million, two hundred seventy-four thousand, four hundred nine".