40259434 has 12 divisors (see below), whose sum is σ = 64151334. Its totient is φ = 18945344.

The previous prime is 40259411. The next prime is 40259437. The reversal of 40259434 is 43495204.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 38477209 + 1782225 = 6203^2 + 1335^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40259396 and 40259405.

It is not an unprimeable number, because it can be changed into a prime (40259437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34249 + ... + 35404.

Almost surely, 2^40259434 is an apocalyptic number.

40259434 is a deficient number, since it is larger than the sum of its proper divisors (23891900).

40259434 is a wasteful number, since it uses less digits than its factorization.

40259434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69689 (or 69672 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 40259434 is about 6345.0322300206. The cubic root of 40259434 is about 342.7329730749.

The spelling of 40259434 in words is "forty million, two hundred fifty-nine thousand, four hundred thirty-four".