43401115 has 16 divisors (see below), whose sum is σ = 55012608. Its totient is φ = 32803936.

The previous prime is 43401109. The next prime is 43401131. The reversal of 43401115 is 51110434.

It is a cyclic number.

It is not a de Polignac number, because 43401115 - 2⁹ = 43400603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43401092 and 43401101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7272 + ... + 11818.

It is an arithmetic number, because the mean of its divisors is an integer number (3438288).

Almost surely, 2^43401115 is an apocalyptic number.

43401115 is a deficient number, since it is larger than the sum of its proper divisors (11611493).

43401115 is a wasteful number, since it uses less digits than its factorization.

43401115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 43401115 is about 6587.9522615150. The cubic root of 43401115 is about 351.4257893403.

Adding to 43401115 its reverse (51110434), we get a palindrome (94511549).

The spelling of 43401115 in words is "forty-three million, four hundred one thousand, one hundred fifteen".