1382431 has 4 divisors (see below), whose sum is σ = 1419832. Its totient is φ = 1345032.

The previous prime is 1382419. The next prime is 1382449. The reversal of 1382431 is 1342831.

1382431 = 175² + 176² + ... + 211².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1342831 = 7 ⋅191833.

It is a cyclic number.

It is not a de Polignac number, because 1382431 - 2¹³ = 1374239 is a prime.

It is a super-2 number, since 2×1382431² = 3822230939522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389431) 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, 18645 + ... + 18718.

It is an arithmetic number, because the mean of its divisors is an integer number (354958).

2^1382431 is an apocalyptic number.

1382431 is a deficient number, since it is larger than the sum of its proper divisors (37401).

1382431 is an equidigital number, since it uses as much as digits as its factorization.

1382431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37400.

The product of its digits is 576, while the sum is 22.

The square root of 1382431 is about 1175.7682594797. The cubic root of 1382431 is about 111.3989646929.

The spelling of 1382431 in words is "one million, three hundred eighty-two thousand, four hundred thirty-one".