7481808 has 100 divisors (see below), whose sum is σ = 22686048. Its totient is φ = 2376000.

The previous prime is 7481783. The next prime is 7481809. The reversal of 7481808 is 8081847.

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 (7481809) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29683 + ... + 29933.

Almost surely, 2^7481808 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 7481808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11343024).

7481808 is an abundant number, since it is smaller than the sum of its proper divisors (15204240).

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

7481808 is a wasteful number, since it uses less digits than its factorization.

7481808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 7481808 is about 2735.2893814001. The cubic root of 7481808 is about 195.5849888740.

It can be divided in two parts, 748 and 1808, that added together give a triangular number (2556 = T₇₁).

The spelling of 7481808 in words is "seven million, four hundred eighty-one thousand, eight hundred eight".