840625034 has 4 divisors (see below), whose sum is σ = 1260937554. Its totient is φ = 420312516.

The previous prime is 840625031. The next prime is 840625043. The reversal of 840625034 is 430526048.

840625034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 815273809 + 25351225 = 28553^2 + 5035^2 .

It is not an unprimeable number, because it can be changed into a prime (840625031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210156257 + ... + 210156260.

Almost surely, 2^840625034 is an apocalyptic number.

840625034 is a deficient number, since it is larger than the sum of its proper divisors (420312520).

840625034 is a wasteful number, since it uses less digits than its factorization.

840625034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420312519.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 840625034 is about 28993.5343481956. The cubic root of 840625034 is about 943.7727633707.

The spelling of 840625034 in words is "eight hundred forty million, six hundred twenty-five thousand, thirty-four".