1397472 has 24 divisors (see below), whose sum is σ = 3668616. Its totient is φ = 465792.

The previous prime is 1397447. The next prime is 1397477. The reversal of 1397472 is 2747931.

It is a tau number, because it is divible by the number of its divisors (24).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7183 + ... + 7374.

It is an arithmetic number, because the mean of its divisors is an integer number (152859).

2^1397472 is an apocalyptic number.

1397472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1397472 is an abundant number, since it is smaller than the sum of its proper divisors (2271144).

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

1397472 is a wasteful number, since it uses less digits than its factorization.

1397472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14570 (or 14562 counting only the distinct ones).

The product of its digits is 10584, while the sum is 33.

The square root of 1397472 is about 1182.1471989562. The cubic root of 1397472 is about 111.8015192184.

The spelling of 1397472 in words is "one million, three hundred ninety-seven thousand, four hundred seventy-two".