7398720 has 168 divisors, whose sum is σ = 29163264. Its totient is φ = 1686528.

The previous prime is 7398701. The next prime is 7398731. The reversal of 7398720 is 278937.

It is a tau number, because it is divible by the number of its divisors (168).

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

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, 19977 + ... + 20343.

Almost surely, 2^7398720 is an apocalyptic number.

7398720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7398720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14581632).

7398720 is an abundant number, since it is smaller than the sum of its proper divisors (21764544).

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

7398720 is a wasteful number, since it uses less digits than its factorization.

7398720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 7398720 is about 2720.0588228934. The cubic root of 7398720 is about 194.8582796697.

It can be divided in two parts, 7398 and 720, that added together give a palindrome (8118).

The spelling of 7398720 in words is "seven million, three hundred ninety-eight thousand, seven hundred twenty".