40214385 has 12 divisors (see below), whose sum is σ = 69705012. Its totient is φ = 21447648.

The previous prime is 40214381. The next prime is 40214407. The reversal of 40214385 is 58341204.

It can be written as a sum of positive squares in 2 ways, for example, as 9345249 + 30869136 = 3057^2 + 5556^2 .

It is not a de Polignac number, because 40214385 - 2² = 40214381 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40214381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 446782 + ... + 446871.

It is an arithmetic number, because the mean of its divisors is an integer number (5808751).

Almost surely, 2^40214385 is an apocalyptic number.

40214385 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40214385 is a deficient number, since it is larger than the sum of its proper divisors (29490627).

40214385 is a wasteful number, since it uses less digits than its factorization.

40214385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893664 (or 893661 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 40214385 is about 6341.4812938303. The cubic root of 40214385 is about 342.6050896728.

Adding to 40214385 its reverse (58341204), we get a palindrome (98555589).

The spelling of 40214385 in words is "forty million, two hundred fourteen thousand, three hundred eighty-five".