1409306639 has 16 divisors (see below), whose sum is σ = 1562639232. Its totient is φ = 1262767968.

The previous prime is 1409306629. The next prime is 1409306659. The reversal of 1409306639 is 9366039041.

It is a cyclic number.

It is not a de Polignac number, because 1409306639 - 2¹⁶ = 1409241103 is a prime.

It is a super-2 number, since 2×1409306639² = 3972290405458952642, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 1409306596 and 1409306605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1409306629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83384 + ... + 98850.

It is an arithmetic number, because the mean of its divisors is an integer number (97664952).

Almost surely, 2^1409306639 is an apocalyptic number.

1409306639 is a deficient number, since it is larger than the sum of its proper divisors (153332593).

1409306639 is a wasteful number, since it uses less digits than its factorization.

1409306639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15686.

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

The square root of 1409306639 is about 37540.7330642330. The cubic root of 1409306639 is about 1121.1623347140.

The spelling of 1409306639 in words is "one billion, four hundred nine million, three hundred six thousand, six hundred thirty-nine".