1297430 has 16 divisors (see below), whose sum is σ = 2437344. Its totient is φ = 496320.

The previous prime is 1297421. The next prime is 1297447. The reversal of 1297430 is 347921.

1297430 = T₈₉ + T₉₀ + ... + T₂₀₃.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1297430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2591 + ... + 3050.

It is an arithmetic number, because the mean of its divisors is an integer number (152334).

2^1297430 is an apocalyptic number.

1297430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1297430 is a deficient number, since it is larger than the sum of its proper divisors (1139914).

1297430 is a wasteful number, since it uses less digits than its factorization.

1297430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5671.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1297430 is about 1139.0478479853. The cubic root of 1297430 is about 109.0673208680.

The spelling of 1297430 in words is "one million, two hundred ninety-seven thousand, four hundred thirty".