40436452 has 36 divisors (see below), whose sum is σ = 82298496. Its totient is φ = 17029440.

The previous prime is 40436437. The next prime is 40436453. The reversal of 40436452 is 25463404.

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 40436452.

It is not an unprimeable number, because it can be changed into a prime (40436453) 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, 149077 + ... + 149347.

Almost surely, 2^40436452 is an apocalyptic number.

It is an amenable number.

40436452 is an abundant number, since it is smaller than the sum of its proper divisors (41862044).

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

40436452 is a wasteful number, since it uses less digits than its factorization.

40436452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 40436452 is about 6358.9662681917. The cubic root of 40436452 is about 343.2345631827.

Adding to 40436452 its reverse (25463404), we get a palindrome (65899856).

It can be divided in two parts, 404 and 36452, that added together give a triangular number (36856 = T₂₇₁).

The spelling of 40436452 in words is "forty million, four hundred thirty-six thousand, four hundred fifty-two".