40512270 has 32 divisors (see below), whose sum is σ = 97949088. Its totient is φ = 10723328.

The previous prime is 40512253. The next prime is 40512271. The reversal of 40512270 is 7221504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40512271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 819 + ... + 9038.

It is an arithmetic number, because the mean of its divisors is an integer number (3060909).

Almost surely, 2^40512270 is an apocalyptic number.

40512270 is an abundant number, since it is smaller than the sum of its proper divisors (57436818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40512270 is a wasteful number, since it uses less digits than its factorization.

40512270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10004.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 40512270 is about 6364.9249799192. The cubic root of 40512270 is about 343.4489498661.

Adding to 40512270 its reverse (7221504), we get a palindrome (47733774).

The spelling of 40512270 in words is "forty million, five hundred twelve thousand, two hundred seventy".