4308981 has 16 divisors (see below), whose sum is σ = 6044544. Its totient is φ = 2725184.

The previous prime is 4308961. The next prime is 4308989. The reversal of 4308981 is 1898034.

It is a cyclic number.

It is not a de Polignac number, because 4308981 - 2⁵ = 4308949 is a prime.

It is a super-2 number, since 2×4308981² = 37134634516722, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4308989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13435 + ... + 13751.

It is an arithmetic number, because the mean of its divisors is an integer number (377784).

Almost surely, 2^4308981 is an apocalyptic number.

It is an amenable number.

4308981 is a deficient number, since it is larger than the sum of its proper divisors (1735563).

4308981 is a wasteful number, since it uses less digits than its factorization.

4308981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 4308981 is about 2075.8085171807. The cubic root of 4308981 is about 162.7264660958.

The spelling of 4308981 in words is "four million, three hundred eight thousand, nine hundred eighty-one".