40978622 has 4 divisors (see below), whose sum is σ = 61467936. Its totient is φ = 20489310.

The previous prime is 40978601. The next prime is 40978633. The reversal of 40978622 is 22687904.

40978622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×40978622² = 3358494922037768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10244654 + ... + 10244657.

It is an arithmetic number, because the mean of its divisors is an integer number (15366984).

Almost surely, 2^40978622 is an apocalyptic number.

40978622 is a deficient number, since it is larger than the sum of its proper divisors (20489314).

40978622 is a wasteful number, since it uses less digits than its factorization.

40978622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20489313.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 40978622 is about 6401.4546784305. The cubic root of 40978622 is about 344.7617819211.

The spelling of 40978622 in words is "forty million, nine hundred seventy-eight thousand, six hundred twenty-two".