1346779459 has 16 divisors (see below), whose sum is σ = 1409918400. Its totient is φ = 1284849664.

The previous prime is 1346779453. The next prime is 1346779463. The reversal of 1346779459 is 9549776431.

It is a cyclic number.

It is not a de Polignac number, because 1346779459 - 2¹³ = 1346771267 is a prime.

It is a super-2 number, since 2×1346779459² = 3627629822368665362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1346779453) 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, 1020402 + ... + 1021720.

It is an arithmetic number, because the mean of its divisors is an integer number (88119900).

Almost surely, 2^1346779459 is an apocalyptic number.

1346779459 is a deficient number, since it is larger than the sum of its proper divisors (63138941).

1346779459 is a wasteful number, since it uses less digits than its factorization.

1346779459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742.

The product of its digits is 5715360, while the sum is 55.

The square root of 1346779459 is about 36698.4939609243. The cubic root of 1346779459 is about 1104.3298924318.

The spelling of 1346779459 in words is "one billion, three hundred forty-six million, seven hundred seventy-nine thousand, four hundred fifty-nine".