40778927 has 16 divisors (see below), whose sum is σ = 48360000. Its totient is φ = 34362720.

The previous prime is 40778923. The next prime is 40778953. The reversal of 40778927 is 72987704.

It is not a de Polignac number, because 40778927 - 2² = 40778923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40778923) 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, 19949 + ... + 21897.

It is an arithmetic number, because the mean of its divisors is an integer number (3022500).

Almost surely, 2^40778927 is an apocalyptic number.

40778927 is a deficient number, since it is larger than the sum of its proper divisors (7581073).

40778927 is an equidigital number, since it uses as much as digits as its factorization.

40778927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 40778927 is about 6385.8380029562. The cubic root of 40778927 is about 344.2008443827.

The spelling of 40778927 in words is "forty million, seven hundred seventy-eight thousand, nine hundred twenty-seven".