1969459345 has 16 divisors (see below), whose sum is σ = 2843130240. Its totient is φ = 1279407744.

The previous prime is 1969459343. The next prime is 1969459351. The reversal of 1969459345 is 5439549691.

It is a cyclic number.

It is not a de Polignac number, because 1969459345 - 2¹ = 1969459343 is a prime.

It is a super-2 number, since 2×1969459345² = 7757540223215658050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1969459343) 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, 1480132 + ... + 1481461.

It is an arithmetic number, because the mean of its divisors is an integer number (177695640).

Almost surely, 2^1969459345 is an apocalyptic number.

It is an amenable number.

1969459345 is a deficient number, since it is larger than the sum of its proper divisors (873670895).

1969459345 is a wasteful number, since it uses less digits than its factorization.

1969459345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961624.

The product of its digits is 5248800, while the sum is 55.

The square root of 1969459345 is about 44378.5910659633. The cubic root of 1969459345 is about 1253.4749908655.

The spelling of 1969459345 in words is "one billion, nine hundred sixty-nine million, four hundred fifty-nine thousand, three hundred forty-five".