40010878 has 4 divisors (see below), whose sum is σ = 60016320. Its totient is φ = 20005438.

The previous prime is 40010857. The next prime is 40010939. The reversal of 40010878 is 87801004.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002718 + ... + 10002721.

It is an arithmetic number, because the mean of its divisors is an integer number (15004080).

Almost surely, 2^40010878 is an apocalyptic number.

40010878 is a deficient number, since it is larger than the sum of its proper divisors (20005442).

40010878 is a wasteful number, since it uses less digits than its factorization.

40010878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20005441.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 40010878 is about 6325.4152432864. The cubic root of 40010878 is about 342.0261883894.

The spelling of 40010878 in words is "forty million, ten thousand, eight hundred seventy-eight".