1254896664 has 72 divisors (see below), whose sum is σ = 3652980660. Its totient is φ = 358194816.

The previous prime is 1254896659. The next prime is 1254896681. The reversal of 1254896664 is 4666984521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1214292 + ... + 1215324.

Almost surely, 2^1254896664 is an apocalyptic number.

1254896664 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 1254896664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1826490330).

1254896664 is an abundant number, since it is smaller than the sum of its proper divisors (2398083996).

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

1254896664 is an equidigital number, since it uses as much as digits as its factorization.

1254896664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089 (or 1045 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The square root of 1254896664 is about 35424.5206601303. The cubic root of 1254896664 is about 1078.6221179942.

The spelling of 1254896664 in words is "one billion, two hundred fifty-four million, eight hundred ninety-six thousand, six hundred sixty-four".