40881403 has 4 divisors (see below), whose sum is σ = 40905040. Its totient is φ = 40857768.

The previous prime is 40881397. The next prime is 40881437. The reversal of 40881403 is 30418804.

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

It is a cyclic number.

It is not a de Polignac number, because 40881403 - 2⁹ = 40880891 is a prime.

It is a super-2 number, since 2×40881403² = 3342578222496818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40881443) 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, 9000 + ... + 12757.

It is an arithmetic number, because the mean of its divisors is an integer number (10226260).

Almost surely, 2^40881403 is an apocalyptic number.

40881403 is a deficient number, since it is larger than the sum of its proper divisors (23637).

40881403 is a wasteful number, since it uses less digits than its factorization.

40881403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23636.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 40881403 is about 6393.8566608894. The cubic root of 40881403 is about 344.4889247178.

The spelling of 40881403 in words is "forty million, eight hundred eighty-one thousand, four hundred three".