40977078 has 8 divisors (see below), whose sum is σ = 81954168. Its totient is φ = 13659024.

The previous prime is 40977073. The next prime is 40977119. The reversal of 40977078 is 87077904.

It is a sphenic number, since it is the product of 3 distinct primes.

40977078 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40977073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3414751 + ... + 3414762.

It is an arithmetic number, because the mean of its divisors is an integer number (10244271).

Almost surely, 2^40977078 is an apocalyptic number.

40977078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40977078 is a wasteful number, since it uses less digits than its factorization.

40977078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6829518.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 40977078 is about 6401.3340797056. The cubic root of 40977078 is about 344.7574518676.

It can be divided in two parts, 4097 and 7078, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 40977078 in words is "forty million, nine hundred seventy-seven thousand, seventy-eight".