3918464 has 64 divisors (see below), whose sum is σ = 8959680. Its totient is φ = 1703680.

The previous prime is 3918443. The next prime is 3918491. The reversal of 3918464 is 4648193.

It is a tau number, because it is divible by the number of its divisors (64).

Its product of digits (20736) is a multiple of the sum of its prime divisors (36).

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, 170357 + ... + 170379.

It is an arithmetic number, because the mean of its divisors is an integer number (139995).

Almost surely, 2^3918464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3918464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4479840).

3918464 is an abundant number, since it is smaller than the sum of its proper divisors (5041216).

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

3918464 is an equidigital number, since it uses as much as digits as its factorization.

3918464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 36 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 3918464 is about 1979.5110507396. The cubic root of 3918464 is about 157.6541063247.

The spelling of 3918464 in words is "three million, nine hundred eighteen thousand, four hundred sixty-four".