1469999664 has 200 divisors, whose sum is σ = 5020218368. Its totient is φ = 406373760.

The previous prime is 1469999659. The next prime is 1469999669. The reversal of 1469999664 is 4669999641.

It is an interprime number because it is at equal distance from previous prime (1469999659) and next prime (1469999669).

It is a super-2 number, since 2×1469999664² = 4321798024320225792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1469999669) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 278619 + ... + 283845.

Almost surely, 2^1469999664 is an apocalyptic number.

1469999664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1469999664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2510109184).

1469999664 is an abundant number, since it is smaller than the sum of its proper divisors (3550218704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1469999664 is a wasteful number, since it uses less digits than its factorization.

1469999664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285 (or 5270 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 63.

The square root of 1469999664 is about 38340.5746435809. The cubic root of 1469999664 is about 1137.0312785096.

The spelling of 1469999664 in words is "one billion, four hundred sixty-nine million, nine hundred ninety-nine thousand, six hundred sixty-four".