67440734 has 16 divisors (see below), whose sum is σ = 107358048. Its totient is φ = 31663872.

The previous prime is 67440733. The next prime is 67440743. The reversal of 67440734 is 43704476.

It is a junction number, because it is equal to n+sod(n) for n = 67440694 and 67440703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67440733) 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, 14522 + ... + 18594.

It is an arithmetic number, because the mean of its divisors is an integer number (6709878).

Almost surely, 2^67440734 is an apocalyptic number.

67440734 is a deficient number, since it is larger than the sum of its proper divisors (39917314).

67440734 is a wasteful number, since it uses less digits than its factorization.

67440734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4579.

The product of its (nonzero) digits is 56448, while the sum is 35.

The square root of 67440734 is about 8212.2307566215. The cubic root of 67440734 is about 407.0434426520.

The spelling of 67440734 in words is "sixty-seven million, four hundred forty thousand, seven hundred thirty-four".