40163245 has 16 divisors (see below), whose sum is σ = 50904000. Its totient is φ = 30336768.

The previous prime is 40163243. The next prime is 40163261. The reversal of 40163245 is 54236104.

40163245 = 76² + 77² + ... + 494².

It is not a de Polignac number, because 40163245 - 2¹ = 40163243 is a prime.

It is a super-2 number, since 2×40163245² = 3226172497860050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40163243) 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, 39301 + ... + 40309.

It is an arithmetic number, because the mean of its divisors is an integer number (3181500).

Almost surely, 2^40163245 is an apocalyptic number.

It is an amenable number.

40163245 is a deficient number, since it is larger than the sum of its proper divisors (10740755).

40163245 is a wasteful number, since it uses less digits than its factorization.

40163245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 40163245 is about 6337.4478301600. The cubic root of 40163245 is about 342.4597995689.

Adding to 40163245 its reverse (54236104), we get a palindrome (94399349).

The spelling of 40163245 in words is "forty million, one hundred sixty-three thousand, two hundred forty-five".