43401481 has 4 divisors (see below), whose sum is σ = 44574532. Its totient is φ = 42228432.

The previous prime is 43401467. The next prime is 43401497. The reversal of 43401481 is 18410434.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23232400 + 20169081 = 4820^2 + 4491^2 .

It is a cyclic number.

It is not a de Polignac number, because 43401481 - 2⁷ = 43401353 is a prime.

It is a super-2 number, since 2×43401481² = 3767377105986722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43401401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586470 + ... + 586543.

It is an arithmetic number, because the mean of its divisors is an integer number (11143633).

Almost surely, 2^43401481 is an apocalyptic number.

It is an amenable number.

43401481 is a deficient number, since it is larger than the sum of its proper divisors (1173051).

43401481 is a wasteful number, since it uses less digits than its factorization.

43401481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173050.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 43401481 is about 6587.9800394355. The cubic root of 43401481 is about 351.4267771910.

The spelling of 43401481 in words is "forty-three million, four hundred one thousand, four hundred eighty-one".