40987278 has 12 divisors (see below), whose sum is σ = 88805808. Its totient is φ = 13662420.

The previous prime is 40987277. The next prime is 40987279. The reversal of 40987278 is 87278904.

40987278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40987277) and next prime (40987279).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40987273) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 1138518 + ... + 1138553.

It is an arithmetic number, because the mean of its divisors is an integer number (7400484).

Almost surely, 2^40987278 is an apocalyptic number.

40987278 is an abundant number, since it is smaller than the sum of its proper divisors (47818530).

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

40987278 is a wasteful number, since it uses less digits than its factorization.

40987278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277079 (or 2277076 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 40987278 is about 6402.1307390587. The cubic root of 40987278 is about 344.7860551295.

The spelling of 40987278 in words is "forty million, nine hundred eighty-seven thousand, two hundred seventy-eight".