40206452 has 36 divisors (see below), whose sum is σ = 83131776. Its totient is φ = 16866720.

The previous prime is 40206449. The next prime is 40206469. The reversal of 40206452 is 25460204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4733 + ... + 10139.

It is an arithmetic number, because the mean of its divisors is an integer number (2309216).

Almost surely, 2^40206452 is an apocalyptic number.

It is an amenable number.

40206452 is an abundant number, since it is smaller than the sum of its proper divisors (42925324).

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

40206452 is a wasteful number, since it uses less digits than its factorization.

40206452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5448 (or 5433 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 40206452 is about 6340.8557782053. The cubic root of 40206452 is about 342.5825598831.

Adding to 40206452 its reverse (25460204), we get a palindrome (65666656).

The spelling of 40206452 in words is "forty million, two hundred six thousand, four hundred fifty-two".