40245404 has 12 divisors (see below), whose sum is σ = 70513464. Its totient is φ = 20098704.

The previous prime is 40245389. The next prime is 40245433. The reversal of 40245404 is 40454204.

It is a self number, because there is not a number n which added to its sum of digits gives 40245404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1919 + ... + 9174.

It is an arithmetic number, because the mean of its divisors is an integer number (5876122).

Almost surely, 2^40245404 is an apocalyptic number.

It is an amenable number.

40245404 is a deficient number, since it is larger than the sum of its proper divisors (30268060).

40245404 is a wasteful number, since it uses less digits than its factorization.

40245404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12004 (or 12002 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 40245404 is about 6343.9265443414. The cubic root of 40245404 is about 342.6931554734.

Adding to 40245404 its reverse (40454204), we get a palindrome (80699608).

The spelling of 40245404 in words is "forty million, two hundred forty-five thousand, four hundred four".