1397430 has 24 divisors (see below), whose sum is σ = 3633552. Its totient is φ = 372624.

The previous prime is 1397359. The next prime is 1397437. The reversal of 1397430 is 347931.

It is a junction number, because it is equal to n+sod(n) for n = 1397394 and 1397403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397437) by changing a digit.

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, 7674 + ... + 7853.

It is an arithmetic number, because the mean of its divisors is an integer number (151398).

2^1397430 is an apocalyptic number.

1397430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1397430 is an abundant number, since it is smaller than the sum of its proper divisors (2236122).

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

1397430 is a wasteful number, since it uses less digits than its factorization.

1397430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15540 (or 15537 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1397430 is about 1182.1294345375. The cubic root of 1397430 is about 111.8003991695.

It can be divided in two parts, 139 and 7430, that added together give a square (7569 = 87²).

The spelling of 1397430 in words is "one million, three hundred ninety-seven thousand, four hundred thirty".