40090834 has 16 divisors (see below), whose sum is σ = 69192000. Its totient is φ = 17065584.

The previous prime is 40090819. The next prime is 40090837. The reversal of 40090834 is 43809004.

It is not an unprimeable number, because it can be changed into a prime (40090837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7524 + ... + 11695.

It is an arithmetic number, because the mean of its divisors is an integer number (4324500).

Almost surely, 2^40090834 is an apocalyptic number.

40090834 is a deficient number, since it is larger than the sum of its proper divisors (29101166).

40090834 is a wasteful number, since it uses less digits than its factorization.

40090834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19377.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 40090834 is about 6331.7323064071. The cubic root of 40090834 is about 342.2538668866.

Adding to 40090834 its reverse (43809004), we get a palindrome (83899838).

The spelling of 40090834 in words is "forty million, ninety thousand, eight hundred thirty-four".