40072034 has 8 divisors (see below), whose sum is σ = 60358188. Its totient is φ = 19952640.

The previous prime is 40072031. The next prime is 40072037. The reversal of 40072034 is 43027004.

It is a happy number.

40072034 is nontrivially palindromic in base 16.

40072034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40072031) and next prime (40072037).

It can be written as a sum of positive squares in 2 ways, for example, as 38502025 + 1570009 = 6205^2 + 1253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40071997 and 40072015.

It is not an unprimeable number, because it can be changed into a prime (40072031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41087 + ... + 42050.

Almost surely, 2^40072034 is an apocalyptic number.

40072034 is a deficient number, since it is larger than the sum of its proper divisors (20286154).

40072034 is a wasteful number, since it uses less digits than its factorization.

40072034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83380.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 40072034 is about 6330.2475465024. The cubic root of 40072034 is about 342.2003602361.

Adding to 40072034 its reverse (43027004), we get a palindrome (83099038).

The spelling of 40072034 in words is "forty million, seventy-two thousand, thirty-four".