40877881 has 4 divisors (see below), whose sum is σ = 44594064. Its totient is φ = 37161700.

The previous prime is 40877867. The next prime is 40877887. The reversal of 40877881 is 18877804.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40877881 is a prime.

It is a super-2 number, since 2×40877881² = 3342002310100322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40877887) 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, 1858075 + ... + 1858096.

It is an arithmetic number, because the mean of its divisors is an integer number (11148516).

Almost surely, 2^40877881 is an apocalyptic number.

It is an amenable number.

40877881 is a deficient number, since it is larger than the sum of its proper divisors (3716183).

40877881 is a wasteful number, since it uses less digits than its factorization.

40877881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716182.

The product of its (nonzero) digits is 100352, while the sum is 43.

The square root of 40877881 is about 6393.5812343318. The cubic root of 40877881 is about 344.4790316715.

The spelling of 40877881 in words is "forty million, eight hundred seventy-seven thousand, eight hundred eighty-one".