40348878 has 24 divisors (see below), whose sum is σ = 82640808. Its totient is φ = 13133232.

The previous prime is 40348853. The next prime is 40348909. The reversal of 40348878 is 87884304.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9276 + ... + 12912.

It is an arithmetic number, because the mean of its divisors is an integer number (3443367).

Almost surely, 2^40348878 is an apocalyptic number.

40348878 is an abundant number, since it is smaller than the sum of its proper divisors (42291930).

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

40348878 is a wasteful number, since it uses less digits than its factorization.

40348878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728 (or 3685 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 40348878 is about 6352.0766683031. The cubic root of 40348878 is about 342.9866008643.

The spelling of 40348878 in words is "forty million, three hundred forty-eight thousand, eight hundred seventy-eight".