1246664460 has 24 divisors (see below), whose sum is σ = 3490660656. Its totient is φ = 332443840.

The previous prime is 1246664443. The next prime is 1246664479. The reversal of 1246664460 is 644666421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10388811 + ... + 10388930.

It is an arithmetic number, because the mean of its divisors is an integer number (145444194).

Almost surely, 2^1246664460 is an apocalyptic number.

1246664460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1246664460 is an abundant number, since it is smaller than the sum of its proper divisors (2243996196).

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

1246664460 is a wasteful number, since it uses less digits than its factorization.

1246664460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20777753 (or 20777751 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 1246664460 is about 35308.1358896218. The cubic root of 1246664460 is about 1076.2583310768.

The spelling of 1246664460 in words is "one billion, two hundred forty-six million, six hundred sixty-four thousand, four hundred sixty".