40634725 has 12 divisors (see below), whose sum is σ = 50996736. Its totient is φ = 32114480.

The previous prime is 40634719. The next prime is 40634753. The reversal of 40634725 is 52743604.

It is not a de Polignac number, because 40634725 - 2¹⁷ = 40503653 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 7717 + ... + 11866.

It is an arithmetic number, because the mean of its divisors is an integer number (4249728).

Almost surely, 2^40634725 is an apocalyptic number.

It is an amenable number.

40634725 is a deficient number, since it is larger than the sum of its proper divisors (10362011).

40634725 is a wasteful number, since it uses less digits than its factorization.

40634725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19676 (or 19671 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 40634725 is about 6374.5372381060. The cubic root of 40634725 is about 343.7946454410.

The spelling of 40634725 in words is "forty million, six hundred thirty-four thousand, seven hundred twenty-five".