40090034 has 4 divisors (see below), whose sum is σ = 60135054. Its totient is φ = 20045016.

The previous prime is 40090021. The next prime is 40090049. The reversal of 40090034 is 43009004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39100009 + 990025 = 6253^2 + 995^2 .

It is a super-2 number, since 2×40090034² = 3214421652242312, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40089988 and 40090015.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10022507 + ... + 10022510.

Almost surely, 2^40090034 is an apocalyptic number.

40090034 is a deficient number, since it is larger than the sum of its proper divisors (20045020).

40090034 is a wasteful number, since it uses less digits than its factorization.

40090034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20045019.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 40090034 is about 6331.6691322273. The cubic root of 40090034 is about 342.2515903487.

Adding to 40090034 its reverse (43009004), we get a palindrome (83099038).

The spelling of 40090034 in words is "forty million, ninety thousand, thirty-four".