40204451 has 12 divisors (see below), whose sum is σ = 46922400. Its totient is φ = 34347600.

The previous prime is 40204433. The next prime is 40204457. The reversal of 40204451 is 15440204.

40204451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40204451 - 2⁶ = 40204387 is a prime.

It is a super-2 number, since 2×40204451² = 3232795760422802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40204457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15926 + ... + 18276.

It is an arithmetic number, because the mean of its divisors is an integer number (3910200).

Almost surely, 2^40204451 is an apocalyptic number.

40204451 is a deficient number, since it is larger than the sum of its proper divisors (6717949).

40204451 is a wasteful number, since it uses less digits than its factorization.

40204451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2714 (or 2707 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 40204451 is about 6340.6979899692. The cubic root of 40204451 is about 342.5768765575.

Adding to 40204451 its reverse (15440204), we get a palindrome (55644655).

The spelling of 40204451 in words is "forty million, two hundred four thousand, four hundred fifty-one".