7418664 has 192 divisors, whose sum is σ = 25272000. Its totient is φ = 1935360.

The previous prime is 7418639. The next prime is 7418669. The reversal of 7418664 is 4668147.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7418669) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 255802 + ... + 255830.

It is an arithmetic number, because the mean of its divisors is an integer number (131625).

Almost surely, 2^7418664 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 7418664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12636000).

7418664 is an abundant number, since it is smaller than the sum of its proper divisors (17853336).

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

7418664 is a wasteful number, since it uses less digits than its factorization.

7418664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 81 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 7418664 is about 2723.7224528208. The cubic root of 7418664 is about 195.0332093341.

The spelling of 7418664 in words is "seven million, four hundred eighteen thousand, six hundred sixty-four".