1334302640 has 80 divisors (see below), whose sum is σ = 3411210240. Its totient is φ = 481340160.

The previous prime is 1334302639. The next prime is 1334302643. The reversal of 1334302640 is 462034331.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1334302640² = 3560727070221939200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1334302643) 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, 105791 + ... + 117729.

It is an arithmetic number, because the mean of its divisors is an integer number (42640128).

Almost surely, 2^1334302640 is an apocalyptic number.

1334302640 is a gapful number since it is divisible by the number (10) 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 1334302640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1705605120).

1334302640 is an abundant number, since it is smaller than the sum of its proper divisors (2076907600).

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

1334302640 is a wasteful number, since it uses less digits than its factorization.

1334302640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12090 (or 12084 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 1334302640 is about 36528.1075337883. The cubic root of 1334302640 is about 1100.9090667001.

Adding to 1334302640 its reverse (462034331), we get a palindrome (1796336971).

The spelling of 1334302640 in words is "one billion, three hundred thirty-four million, three hundred two thousand, six hundred forty".