40250605 has 8 divisors (see below), whose sum is σ = 48411000. Its totient is φ = 32126976.

The previous prime is 40250597. The next prime is 40250641. The reversal of 40250605 is 50605204.

It can be written as a sum of positive squares in 4 ways, for example, as 6215049 + 34035556 = 2493^2 + 5834^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40250605 - 2³ = 40250597 is a prime.

It is a super-2 number, since 2×40250605² = 3240222405732050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6720 + ... + 11209.

It is an arithmetic number, because the mean of its divisors is an integer number (6051375).

Almost surely, 2^40250605 is an apocalyptic number.

It is an amenable number.

40250605 is a deficient number, since it is larger than the sum of its proper divisors (8160395).

40250605 is a wasteful number, since it uses less digits than its factorization.

40250605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18383.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 40250605 is about 6344.3364507252. The cubic root of 40250605 is about 342.7079171617.

Adding to 40250605 its reverse (50605204), we get a palindrome (90855809).

The spelling of 40250605 in words is "forty million, two hundred fifty thousand, six hundred five".