1408931 has 4 divisors (see below), whose sum is σ = 1412472. Its totient is φ = 1405392.

The previous prime is 1408889. The next prime is 1408961. The reversal of 1408931 is 1398041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1398041 = 241 ⋅5801.

It is a cyclic number.

It is not a de Polignac number, because 1408931 - 2⁶ = 1408867 is a prime.

It is a super-2 number, since 2×1408931² = 3970173125522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1408931.

It is not an unprimeable number, because it can be changed into a prime (1408961) 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, 1085 + ... + 1998.

It is an arithmetic number, because the mean of its divisors is an integer number (353118).

2^1408931 is an apocalyptic number.

1408931 is a deficient number, since it is larger than the sum of its proper divisors (3541).

1408931 is an equidigital number, since it uses as much as digits as its factorization.

1408931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1408931 is about 1186.9839931524. The cubic root of 1408931 is about 112.1062713688.

The spelling of 1408931 in words is "one million, four hundred eight thousand, nine hundred thirty-one".