43081401 has 16 divisors (see below), whose sum is σ = 62935488. Its totient is φ = 25996800.

The previous prime is 43081397. The next prime is 43081403. The reversal of 43081401 is 10418034.

It is not a de Polignac number, because 43081401 - 2² = 43081397 is a prime.

It is a super-2 number, since 2×43081401² = 3712014224245602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43081403) 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, 5245 + ... + 10661.

It is an arithmetic number, because the mean of its divisors is an integer number (3933468).

Almost surely, 2^43081401 is an apocalyptic number.

It is an amenable number.

43081401 is a deficient number, since it is larger than the sum of its proper divisors (19854087).

43081401 is a wasteful number, since it uses less digits than its factorization.

43081401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5672.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 43081401 is about 6563.6423577157. The cubic root of 43081401 is about 350.5607365359.

Adding to 43081401 its reverse (10418034), we get a palindrome (53499435).

The spelling of 43081401 in words is "forty-three million, eighty-one thousand, four hundred one".