4269981 has 4 divisors (see below), whose sum is σ = 5693312. Its totient is φ = 2846652.

The previous prime is 4269961. The next prime is 4269983. The reversal of 4269981 is 1899624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4269981 - 2⁵ = 4269949 is a prime.

It is a super-2 number, since 2×4269981² = 36465475480722, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4269983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711661 + ... + 711666.

It is an arithmetic number, because the mean of its divisors is an integer number (1423328).

Almost surely, 2^4269981 is an apocalyptic number.

It is an amenable number.

4269981 is a deficient number, since it is larger than the sum of its proper divisors (1423331).

4269981 is a wasteful number, since it uses less digits than its factorization.

4269981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423330.

The product of its digits is 31104, while the sum is 39.

The square root of 4269981 is about 2066.3932345998. The cubic root of 4269981 is about 162.2340391057.

The spelling of 4269981 in words is "four million, two hundred sixty-nine thousand, nine hundred eighty-one".