67400070 has 32 divisors (see below), whose sum is σ = 171276768. Its totient is φ = 16915968.

The previous prime is 67400063. The next prime is 67400071. The reversal of 67400070 is 7000476.

It is a self number, because there is not a number n which added to its sum of digits gives 67400070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67400071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65569 + ... + 66588.

It is an arithmetic number, because the mean of its divisors is an integer number (5352399).

Almost surely, 2^67400070 is an apocalyptic number.

67400070 is an abundant number, since it is smaller than the sum of its proper divisors (103876698).

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

67400070 is a wasteful number, since it uses less digits than its factorization.

67400070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132184.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 67400070 is about 8209.7545639319. The cubic root of 67400070 is about 406.9616160297.

The spelling of 67400070 in words is "sixty-seven million, four hundred thousand, seventy".