40633290 has 24 divisors (see below), whose sum is σ = 105646788. Its totient is φ = 10835520.

The previous prime is 40633273. The next prime is 40633297. The reversal of 40633290 is 9233604.

40633290 is a `hidden beast` number, since 4 + 0 + 633 + 29 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 40411449 + 221841 = 6357^2 + 471^2 .

It is not an unprimeable number, because it can be changed into a prime (40633297) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 225651 + ... + 225830.

Almost surely, 2^40633290 is an apocalyptic number.

40633290 is an abundant number, since it is smaller than the sum of its proper divisors (65013498).

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

40633290 is a wasteful number, since it uses less digits than its factorization.

40633290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451494 (or 451491 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 40633290 is about 6374.4246799221. The cubic root of 40633290 is about 343.7905984006.

Adding to 40633290 its reverse (9233604), we get a palindrome (49866894).

The spelling of 40633290 in words is "forty million, six hundred thirty-three thousand, two hundred ninety".