4380831 has 32 divisors (see below), whose sum is σ = 7992320. Its totient is φ = 2309472.

The previous prime is 4380793. The next prime is 4380839. The reversal of 4380831 is 1380834.

4380831 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4380831 - 2⁶ = 4380767 is a prime.

It is a super-2 number, since 2×4380831² = 38383360501122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

4380831 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4380795 and 4380804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4380839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1566 + ... + 3348.

It is an arithmetic number, because the mean of its divisors is an integer number (249760).

Almost surely, 2^4380831 is an apocalyptic number.

4380831 is a deficient number, since it is larger than the sum of its proper divisors (3611489).

4380831 is a wasteful number, since it uses less digits than its factorization.

4380831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812 (or 1806 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 4380831 is about 2093.0434778093. The cubic root of 4380831 is about 163.6259445386.

The spelling of 4380831 in words is "four million, three hundred eighty thousand, eight hundred thirty-one".