1406601331 has 8 divisors (see below), whose sum is σ = 1491443280. Its totient is φ = 1322840448.

The previous prime is 1406601323. The next prime is 1406601353. The reversal of 1406601331 is 1331066041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1406601331 - 2³ = 1406601323 is a prime.

It is a super-2 number, since 2×1406601331² = 3957054608741943122, 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 = 1406601296 and 1406601305.

It is not an unprimeable number, because it can be changed into a prime (1406601311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267586 + ... + 272791.

It is an arithmetic number, because the mean of its divisors is an integer number (186430410).

Almost surely, 2^1406601331 is an apocalyptic number.

1406601331 is a deficient number, since it is larger than the sum of its proper divisors (84841949).

1406601331 is a wasteful number, since it uses less digits than its factorization.

1406601331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540533.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1406601331 is about 37504.6841207868. The cubic root of 1406601331 is about 1120.4444799910. Note that the first 4 decimals are identical.

Adding to 1406601331 its reverse (1331066041), we get a palindrome (2737667372).

The spelling of 1406601331 in words is "one billion, four hundred six million, six hundred one thousand, three hundred thirty-one".