40063290 has 32 divisors (see below), whose sum is σ = 96361920. Its totient is φ = 10660224.

The previous prime is 40063259. The next prime is 40063307. The reversal of 40063290 is 9236004.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40063290.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15897 + ... + 18243.

It is an arithmetic number, because the mean of its divisors is an integer number (3011310).

Almost surely, 2^40063290 is an apocalyptic number.

40063290 is an abundant number, since it is smaller than the sum of its proper divisors (56298630).

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

40063290 is a wasteful number, since it uses less digits than its factorization.

40063290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2926.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 40063290 is about 6329.5568565264. The cubic root of 40063290 is about 342.1754682494.

Adding to 40063290 its reverse (9236004), we get a palindrome (49299294).

The spelling of 40063290 in words is "forty million, sixty-three thousand, two hundred ninety".