67400034 has 16 divisors (see below), whose sum is σ = 145169472. Its totient is φ = 20738448.

The previous prime is 67400033. The next prime is 67400063. The reversal of 67400034 is 43000476.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67399977 and 67400013.

It is not an unprimeable number, because it can be changed into a prime (67400033) 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, 431974 + ... + 432129.

It is an arithmetic number, because the mean of its divisors is an integer number (9073092).

Almost surely, 2^67400034 is an apocalyptic number.

67400034 is an abundant number, since it is smaller than the sum of its proper divisors (77769438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67400034 is a wasteful number, since it uses less digits than its factorization.

67400034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864121.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 67400034 is about 8209.7523714178. The cubic root of 67400034 is about 406.9615435737.

The spelling of 67400034 in words is "sixty-seven million, four hundred thousand, thirty-four".