1382731 has 6 divisors (see below), whose sum is σ = 1608540. Its totient is φ = 1185156.

The previous prime is 1382681. The next prime is 1382753. The reversal of 1382731 is 1372831.

It is not a de Polignac number, because 1382731 - 2¹³ = 1374539 is a prime.

It is a super-2 number, since 2×1382731² = 3823890036722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1382696 and 1382705.

It is not an unprimeable number, because it can be changed into a prime (1383731) 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, 14061 + ... + 14158.

It is an arithmetic number, because the mean of its divisors is an integer number (268090).

2^1382731 is an apocalyptic number.

1382731 is a deficient number, since it is larger than the sum of its proper divisors (225809).

1382731 is an equidigital number, since it uses as much as digits as its factorization.

1382731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28233 (or 28226 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 1382731 is about 1175.8958287195. The cubic root of 1382731 is about 111.4070223036.

The spelling of 1382731 in words is "one million, three hundred eighty-two thousand, seven hundred thirty-one".