7381816 has 16 divisors (see below), whose sum is σ = 14905800. Its totient is φ = 3406944.

The previous prime is 7381789. The next prime is 7381819. The reversal of 7381816 is 6181837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7381819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35386 + ... + 35593.

Almost surely, 2^7381816 is an apocalyptic number.

It is an amenable number.

7381816 is an abundant number, since it is smaller than the sum of its proper divisors (7523984).

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

7381816 is a wasteful number, since it uses less digits than its factorization.

7381816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70998 (or 70994 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 7381816 is about 2716.9497603011. The cubic root of 7381816 is about 194.7097676712.

The spelling of 7381816 in words is "seven million, three hundred eighty-one thousand, eight hundred sixteen".