67342730 has 64 divisors (see below), whose sum is σ = 152748288. Its totient is φ = 20805120.

The previous prime is 67342721. The next prime is 67342733. The reversal of 67342730 is 3724376.

67342730 = T₂₉₈₉ + T₂₉₉₀ + ... + T₃₀₀₃.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (67342733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38270 + ... + 39990.

It is an arithmetic number, because the mean of its divisors is an integer number (2386692).

Almost surely, 2^67342730 is an apocalyptic number.

67342730 is an abundant number, since it is smaller than the sum of its proper divisors (85405558).

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

67342730 is a wasteful number, since it uses less digits than its factorization.

67342730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791.

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 67342730 is about 8206.2616336551. The cubic root of 67342730 is about 406.8461769825.

The spelling of 67342730 in words is "sixty-seven million, three hundred forty-two thousand, seven hundred thirty".