1406396039 has 4 divisors (see below), whose sum is σ = 1430233320. Its totient is φ = 1382558760.

The previous prime is 1406395997. The next prime is 1406396041. The reversal of 1406396039 is 9306936041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1406396039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1406395987 and 1406396005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406396339) 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, 11918552 + ... + 11918669.

It is an arithmetic number, because the mean of its divisors is an integer number (357558330).

Almost surely, 2^1406396039 is an apocalyptic number.

1406396039 is a deficient number, since it is larger than the sum of its proper divisors (23837281).

1406396039 is an equidigital number, since it uses as much as digits as its factorization.

1406396039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23837280.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 1406396039 is about 37501.9471361155. The cubic root of 1406396039 is about 1120.3899681038.

The spelling of 1406396039 in words is "one billion, four hundred six million, three hundred ninety-six thousand, thirty-nine".