1270398 has 16 divisors (see below), whose sum is σ = 2572416. Its totient is φ = 418200.

The previous prime is 1270391. The next prime is 1270417. The reversal of 1270398 is 8930721.

It is a happy number.

It is a super-2 number, since 2×1270398² = 3227822156808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 778 + ... + 1773.

It is an arithmetic number, because the mean of its divisors is an integer number (160776).

2^1270398 is an apocalyptic number.

1270398 is an abundant number, since it is smaller than the sum of its proper divisors (1302018).

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

1270398 is a wasteful number, since it uses less digits than its factorization.

1270398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1270398 is about 1127.1193370713. The cubic root of 1270398 is about 108.3045246211.

The spelling of 1270398 in words is "one million, two hundred seventy thousand, three hundred ninety-eight".