1464653646 has 48 divisors (see below), whose sum is σ = 3352976640. Its totient is φ = 460786320.

The previous prime is 1464653609. The next prime is 1464653651. The reversal of 1464653646 is 6463564641.

1464653646 is a `hidden beast` number, since 14 + 64 + 6 + 536 + 46 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84781 + ... + 100583.

It is an arithmetic number, because the mean of its divisors is an integer number (69853680).

Almost surely, 2^1464653646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1464653646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1676488320).

1464653646 is an abundant number, since it is smaller than the sum of its proper divisors (1888322994).

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

1464653646 is a wasteful number, since it uses less digits than its factorization.

1464653646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16101 (or 16098 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The square root of 1464653646 is about 38270.7936421496. The cubic root of 1464653646 is about 1135.6512388809.

The spelling of 1464653646 in words is "one billion, four hundred sixty-four million, six hundred fifty-three thousand, six hundred forty-six".