7180381 has 8 divisors (see below), whose sum is σ = 7753760. Its totient is φ = 6610032.

The previous prime is 7180363. The next prime is 7180391. The reversal of 7180381 is 1830817.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7180381 - 2¹³ = 7172189 is a prime.

It is a super-2 number, since 2×7180381² = 103115742610322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7180321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7930 + ... + 8788.

It is an arithmetic number, because the mean of its divisors is an integer number (969220).

Almost surely, 2^7180381 is an apocalyptic number.

It is an amenable number.

7180381 is a deficient number, since it is larger than the sum of its proper divisors (573379).

7180381 is a wasteful number, since it uses less digits than its factorization.

7180381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 7180381 is about 2679.6232944203. The cubic root of 7180381 is about 192.9223290781.

The spelling of 7180381 in words is "seven million, one hundred eighty thousand, three hundred eighty-one".