40225040 has 40 divisors (see below), whose sum is σ = 94005888. Its totient is φ = 16007040.

The previous prime is 40225013. The next prime is 40225049. The reversal of 40225040 is 4052204.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (40225049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15689 + ... + 18071.

Almost surely, 2^40225040 is an apocalyptic number.

40225040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40225040 is an abundant number, since it is smaller than the sum of its proper divisors (53780848).

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

40225040 is a wasteful number, since it uses less digits than its factorization.

40225040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607 (or 2601 counting only the distinct ones).

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

The square root of 40225040 is about 6342.3213415909. The cubic root of 40225040 is about 342.6353453046.

Adding to 40225040 its reverse (4052204), we get a palindrome (44277244).

The spelling of 40225040 in words is "forty million, two hundred twenty-five thousand, forty".