67744340 has 48 divisors (see below), whose sum is σ = 145152000. Its totient is φ = 26554752.

The previous prime is 67744333. The next prime is 67744349. The reversal of 67744340 is 4344776.

It is a self number, because there is not a number n which added to its sum of digits gives 67744340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67744349) 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, 378371 + ... + 378549.

It is an arithmetic number, because the mean of its divisors is an integer number (3024000).

Almost surely, 2^67744340 is an apocalyptic number.

It is an amenable number.

67744340 is an abundant number, since it is smaller than the sum of its proper divisors (77407660).

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

67744340 is a wasteful number, since it uses less digits than its factorization.

67744340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 462 counting only the distinct ones).

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

The square root of 67744340 is about 8230.6949888816. The cubic root of 67744340 is about 407.6533403619.

The spelling of 67744340 in words is "sixty-seven million, seven hundred forty-four thousand, three hundred forty".