40436145 has 16 divisors (see below), whose sum is σ = 71886720. Its totient is φ = 21565872.

The previous prime is 40436131. The next prime is 40436147. The reversal of 40436145 is 54163404.

40436145 is a `hidden beast` number, since 4 + 0 + 43 + 614 + 5 = 666.

It is not a de Polignac number, because 40436145 - 2⁵ = 40436113 is a prime.

It is a super-2 number, since 2×40436145² = 3270163644922050, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (40436147) 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, 149629 + ... + 149898.

It is an arithmetic number, because the mean of its divisors is an integer number (4492920).

Almost surely, 2^40436145 is an apocalyptic number.

40436145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40436145 is a deficient number, since it is larger than the sum of its proper divisors (31450575).

40436145 is a wasteful number, since it uses less digits than its factorization.

40436145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299541 (or 299535 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 40436145 is about 6358.9421290023. The cubic root of 40436145 is about 343.2336945499.

Adding to 40436145 its reverse (54163404), we get a palindrome (94599549).

The spelling of 40436145 in words is "forty million, four hundred thirty-six thousand, one hundred forty-five".