40051245 has 16 divisors (see below), whose sum is σ = 69011712. Its totient is φ = 19717440.

The previous prime is 40051229. The next prime is 40051267. The reversal of 40051245 is 54215004.

It is not a de Polignac number, because 40051245 - 2⁴ = 40051229 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 102501 + ... + 102890.

It is an arithmetic number, because the mean of its divisors is an integer number (4313232).

Almost surely, 2^40051245 is an apocalyptic number.

It is an amenable number.

40051245 is a deficient number, since it is larger than the sum of its proper divisors (28960467).

40051245 is a wasteful number, since it uses less digits than its factorization.

40051245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205412.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 40051245 is about 6328.6052965879. The cubic root of 40051245 is about 342.1411732075.

Adding to 40051245 its reverse (54215004), we get a palindrome (94266249).

The spelling of 40051245 in words is "forty million, fifty-one thousand, two hundred forty-five".