1294455660 has 96 divisors (see below), whose sum is σ = 3743604480. Its totient is φ = 333994752.

The previous prime is 1294455653. The next prime is 1294455689. The reversal of 1294455660 is 665544921.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 278919 + ... + 283521.

It is an arithmetic number, because the mean of its divisors is an integer number (38995880).

Almost surely, 2^1294455660 is an apocalyptic number.

1294455660 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 1294455660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1871802240).

1294455660 is an abundant number, since it is smaller than the sum of its proper divisors (2449148820).

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

1294455660 is a wasteful number, since it uses less digits than its factorization.

1294455660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4767 (or 4765 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 1294455660 is about 35978.5444397074. The cubic root of 1294455660 is about 1089.8391199868.

The spelling of 1294455660 in words is "one billion, two hundred ninety-four million, four hundred fifty-five thousand, six hundred sixty".