4465391728 has 40 divisors (see below), whose sum is σ = 9954050400. Its totient is φ = 1900888320.

The previous prime is 4465391719. The next prime is 4465391737. The reversal of 4465391728 is 8271935644.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4465391719) and next prime (4465391737).

It is a congruent number.

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, 117103 + ... + 150478.

It is an arithmetic number, because the mean of its divisors is an integer number (248851260).

Almost surely, 2^4465391728 is an apocalyptic number.

It is an amenable number.

4465391728 is an abundant number, since it is smaller than the sum of its proper divisors (5488658672).

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

4465391728 is a wasteful number, since it uses less digits than its factorization.

4465391728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267745 (or 267739 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The square root of 4465391728 is about 66823.5866143086. The cubic root of 4465391728 is about 1646.7203576134.

The spelling of 4465391728 in words is "four billion, four hundred sixty-five million, three hundred ninety-one thousand, seven hundred twenty-eight".