40136572 has 24 divisors (see below), whose sum is σ = 80912384. Its totient is φ = 17064432.

The previous prime is 40136567. The next prime is 40136573. The reversal of 40136572 is 27563104.

It is a super-2 number, since 2×40136572² = 3221888823822368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 40136572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40136573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2088 + ... + 9199.

Almost surely, 2^40136572 is an apocalyptic number.

It is an amenable number.

40136572 is an abundant number, since it is smaller than the sum of its proper divisors (40775812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40136572 is a wasteful number, since it uses less digits than its factorization.

40136572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11425 (or 11423 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 40136572 is about 6335.3430846324. The cubic root of 40136572 is about 342.3839719220.

Adding to 40136572 its reverse (27563104), we get a palindrome (67699676).

It can be divided in two parts, 4013 and 6572, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 40136572 in words is "forty million, one hundred thirty-six thousand, five hundred seventy-two".