9240381 has 6 divisors (see below), whose sum is σ = 13347230. Its totient is φ = 6160248.

The previous prime is 9240377. The next prime is 9240383. The reversal of 9240381 is 1830429.

It can be written as a sum of positive squares in only one way, i.e., 8608356 + 632025 = 2934^2 + 795^2 .

It is not a de Polignac number, because 9240381 - 2² = 9240377 is a prime.

It is a super-2 number, since 2×9240381² = 170769282050322, 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 (9240383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 513346 + ... + 513363.

Almost surely, 2^9240381 is an apocalyptic number.

It is an amenable number.

9240381 is a deficient number, since it is larger than the sum of its proper divisors (4106849).

9240381 is a wasteful number, since it uses less digits than its factorization.

9240381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026715 (or 1026712 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 9240381 is about 3039.7994999671. The cubic root of 9240381 is about 209.8440338531.

The spelling of 9240381 in words is "nine million, two hundred forty thousand, three hundred eighty-one".