40784425 has 24 divisors (see below), whose sum is σ = 56469600. Its totient is φ = 28963200.

The previous prime is 40784423. The next prime is 40784467. The reversal of 40784425 is 52448704.

It is a happy number.

It is not a de Polignac number, because 40784425 - 2¹ = 40784423 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40784423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10101 + ... + 13549.

It is an arithmetic number, because the mean of its divisors is an integer number (2352900).

Almost surely, 2^40784425 is an apocalyptic number.

It is an amenable number.

40784425 is a deficient number, since it is larger than the sum of its proper divisors (15685175).

40784425 is a wasteful number, since it uses less digits than its factorization.

40784425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513 (or 3508 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 40784425 is about 6386.2684722771. The cubic root of 40784425 is about 344.2163125941.

It can be divided in two parts, 40784 and 425, that added together give a square (41209 = 203²).

The spelling of 40784425 in words is "forty million, seven hundred eighty-four thousand, four hundred twenty-five".