40978054 has 16 divisors (see below), whose sum is σ = 67736592. Its totient is φ = 18472608.

The previous prime is 40978051. The next prime is 40978057. The reversal of 40978054 is 45087904.

It is an interprime number because it is at equal distance from previous prime (40978051) and next prime (40978057).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40978051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17209 + ... + 19444.

It is an arithmetic number, because the mean of its divisors is an integer number (4233537).

Almost surely, 2^40978054 is an apocalyptic number.

40978054 is a deficient number, since it is larger than the sum of its proper divisors (26758538).

40978054 is a wasteful number, since it uses less digits than its factorization.

40978054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36711.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 40978054 is about 6401.4103133606. The cubic root of 40978054 is about 344.7601890125.

The spelling of 40978054 in words is "forty million, nine hundred seventy-eight thousand, fifty-four".