40634090 has 16 divisors (see below), whose sum is σ = 83590272. Its totient is φ = 13931664.

The previous prime is 40634089. The next prime is 40634117. The reversal of 40634090 is 9043604.

It is a super-2 number, since 2×40634090² = 3302258540256200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290174 + ... + 290313.

It is an arithmetic number, because the mean of its divisors is an integer number (5224392).

Almost surely, 2^40634090 is an apocalyptic number.

40634090 is an abundant number, since it is smaller than the sum of its proper divisors (42956182).

40634090 is a wasteful number, since it uses less digits than its factorization.

40634090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580501.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 40634090 is about 6374.4874303743. The cubic root of 40634090 is about 343.7928546021.

Adding to 40634090 its reverse (9043604), we get a palindrome (49677694).

The spelling of 40634090 in words is "forty million, six hundred thirty-four thousand, ninety".