40251045 has 16 divisors (see below), whose sum is σ = 64778112. Its totient is φ = 21341760.

The previous prime is 40251041. The next prime is 40251047. The reversal of 40251045 is 54015204.

40251045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40251045 - 2² = 40251041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40251041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5161 + ... + 10350.

It is an arithmetic number, because the mean of its divisors is an integer number (4048632).

Almost surely, 2^40251045 is an apocalyptic number.

It is an amenable number.

40251045 is a deficient number, since it is larger than the sum of its proper divisors (24527067).

40251045 is a wasteful number, since it uses less digits than its factorization.

40251045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15692.

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

The square root of 40251045 is about 6344.3711272277. The cubic root of 40251045 is about 342.7091659291.

Adding to 40251045 its reverse (54015204), we get a palindrome (94266249).

The spelling of 40251045 in words is "forty million, two hundred fifty-one thousand, forty-five".