40106290 has 32 divisors (see below), whose sum is σ = 82892160. Its totient is φ = 13686144.

The previous prime is 40106263. The next prime is 40106291. The reversal of 40106290 is 9260104.

It is not an unprimeable number, because it can be changed into a prime (40106291) 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, 15081 + ... + 17539.

It is an arithmetic number, because the mean of its divisors is an integer number (2590380).

Almost surely, 2^40106290 is an apocalyptic number.

40106290 is an abundant number, since it is smaller than the sum of its proper divisors (42785870).

40106290 is a wasteful number, since it uses less digits than its factorization.

40106290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 40106290 is about 6332.9527078607. The cubic root of 40106290 is about 342.2978436563.

Adding to 40106290 its reverse (9260104), we get a palindrome (49366394).

The spelling of 40106290 in words is "forty million, one hundred six thousand, two hundred ninety".