40040450 has 24 divisors (see below), whose sum is σ = 75530880. Its totient is φ = 15789200.

The previous prime is 40040411. The next prime is 40040471. The reversal of 40040450 is 5404004.

It is a Curzon 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, 2090 + ... + 9189.

It is an arithmetic number, because the mean of its divisors is an integer number (3147120).

Almost surely, 2^40040450 is an apocalyptic number.

40040450 is a deficient number, since it is larger than the sum of its proper divisors (35490430).

40040450 is a wasteful number, since it uses less digits than its factorization.

40040450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11362 (or 11357 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 40040450 is about 6327.7523655718. The cubic root of 40040450 is about 342.1104313763.

Adding to 40040450 its reverse (5404004), we get a palindrome (45444454).

The spelling of 40040450 in words is "forty million, forty thousand, four hundred fifty".