40978006 has 4 divisors (see below), whose sum is σ = 61467012. Its totient is φ = 20489002.

The previous prime is 40977997. The next prime is 40978027. The reversal of 40978006 is 60087904.

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, 10244500 + ... + 10244503.

It is an arithmetic number, because the mean of its divisors is an integer number (15366753).

Almost surely, 2^40978006 is an apocalyptic number.

40978006 is a deficient number, since it is larger than the sum of its proper divisors (20489006).

40978006 is a wasteful number, since it uses less digits than its factorization.

40978006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20489005.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 40978006 is about 6401.4065641857. The cubic root of 40978006 is about 344.7600543999.

The spelling of 40978006 in words is "forty million, nine hundred seventy-eight thousand, six".