40513284 has 60 divisors (see below), whose sum is σ = 121046464. Its totient is φ = 11574576.

The previous prime is 40513279. The next prime is 40513331. The reversal of 40513284 is 48231504.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 19 ways as a sum of consecutive naturals, for example, 6664 + ... + 11199.

Almost surely, 2^40513284 is an apocalyptic number.

It is an amenable number.

40513284 is an abundant number, since it is smaller than the sum of its proper divisors (80533180).

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

40513284 is a wasteful number, since it uses less digits than its factorization.

40513284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17886 (or 17875 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 40513284 is about 6365.0046347194. The cubic root of 40513284 is about 343.4518152888.

Adding to 40513284 its reverse (48231504), we get a palindrome (88744788).

It can be divided in two parts, 405 and 13284, that added together give a square (13689 = 117²).

The spelling of 40513284 in words is "forty million, five hundred thirteen thousand, two hundred eighty-four".