40878951 has 16 divisors (see below), whose sum is σ = 56553600. Its totient is φ = 26234208.

The previous prime is 40878947. The next prime is 40878961. The reversal of 40878951 is 15987804.

It is not a de Polignac number, because 40878951 - 2² = 40878947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40878961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47160 + ... + 48018.

It is an arithmetic number, because the mean of its divisors is an integer number (3534600).

Almost surely, 2^40878951 is an apocalyptic number.

40878951 is a deficient number, since it is larger than the sum of its proper divisors (15674649).

40878951 is a wasteful number, since it uses less digits than its factorization.

40878951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 40878951 is about 6393.6649114573. The cubic root of 40878951 is about 344.4820372852.

The spelling of 40878951 in words is "forty million, eight hundred seventy-eight thousand, nine hundred fifty-one".