40771215 has 16 divisors (see below), whose sum is σ = 72482400. Its totient is φ = 21744576.

The previous prime is 40771193. The next prime is 40771217. The reversal of 40771215 is 51217704.

It is not a de Polignac number, because 40771215 - 2⁹ = 40770703 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40771217) 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, 150870 + ... + 151139.

It is an arithmetic number, because the mean of its divisors is an integer number (4530150).

Almost surely, 2^40771215 is an apocalyptic number.

40771215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40771215 is a deficient number, since it is larger than the sum of its proper divisors (31711185).

40771215 is a wasteful number, since it uses less digits than its factorization.

40771215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302023 (or 302017 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 40771215 is about 6385.2341382286. The cubic root of 40771215 is about 344.1791449049.

Adding to 40771215 its reverse (51217704), we get a palindrome (91988919).

The spelling of 40771215 in words is "forty million, seven hundred seventy-one thousand, two hundred fifteen".