40622878 has 4 divisors (see below), whose sum is σ = 60934320. Its totient is φ = 20311438.

The previous prime is 40622861. The next prime is 40622947. The reversal of 40622878 is 87822604.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155718 + ... + 10155721.

It is an arithmetic number, because the mean of its divisors is an integer number (15233580).

Almost surely, 2^40622878 is an apocalyptic number.

40622878 is a deficient number, since it is larger than the sum of its proper divisors (20311442).

40622878 is a wasteful number, since it uses less digits than its factorization.

40622878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20311441.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 40622878 is about 6373.6079264417. The cubic root of 40622878 is about 343.7612312363.

The spelling of 40622878 in words is "forty million, six hundred twenty-two thousand, eight hundred seventy-eight".