40786905 has 16 divisors (see below), whose sum is σ = 67510080. Its totient is φ = 21002688.

The previous prime is 40786903. The next prime is 40786937. The reversal of 40786905 is 50968704.

It is not a de Polignac number, because 40786905 - 2¹ = 40786903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40786903) 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, 46447 + ... + 47316.

It is an arithmetic number, because the mean of its divisors is an integer number (4219380).

Almost surely, 2^40786905 is an apocalyptic number.

It is an amenable number.

40786905 is a deficient number, since it is larger than the sum of its proper divisors (26723175).

40786905 is a wasteful number, since it uses less digits than its factorization.

40786905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93800.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 40786905 is about 6386.4626359198. The cubic root of 40786905 is about 344.2232894336.

The spelling of 40786905 in words is "forty million, seven hundred eighty-six thousand, nine hundred five".