40200404 has 6 divisors (see below), whose sum is σ = 70350714. Its totient is φ = 20100200.

The previous prime is 40200373. The next prime is 40200421. The reversal of 40200404 is 40400204.

It can be written as a sum of positive squares in only one way, i.e., 37797904 + 2402500 = 6148^2 + 1550^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025047 + ... + 5025054.

It is an arithmetic number, because the mean of its divisors is an integer number (11725119).

Almost surely, 2^40200404 is an apocalyptic number.

It is an amenable number.

40200404 is a deficient number, since it is larger than the sum of its proper divisors (30150310).

40200404 is a wasteful number, since it uses less digits than its factorization.

40200404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050105 (or 10050103 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 40200404 is about 6340.3788530339. The cubic root of 40200404 is about 342.5653815190.

Adding to 40200404 its reverse (40400204), we get a palindrome (80600608).

It can be divided in two parts, 40200 and 404, that added together give a palindrome (40604).

The spelling of 40200404 in words is "forty million, two hundred thousand, four hundred four".