40978005 has 32 divisors (see below), whose sum is σ = 67288320. Its totient is φ = 21288960.

The previous prime is 40977997. The next prime is 40978027. The reversal of 40978005 is 50087904.

It is not a de Polignac number, because 40978005 - 2³ = 40977997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115909 + ... + 116261.

It is an arithmetic number, because the mean of its divisors is an integer number (2102760).

Almost surely, 2^40978005 is an apocalyptic number.

It is an amenable number.

40978005 is a deficient number, since it is larger than the sum of its proper divisors (26310315).

40978005 is a wasteful number, since it uses less digits than its factorization.

40978005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 40978005 is about 6401.4064860779. The cubic root of 40978005 is about 344.7600515954.

The spelling of 40978005 in words is "forty million, nine hundred seventy-eight thousand, five".