67944492 has 144 divisors (see below), whose sum is σ = 216932352. Its totient is φ = 17418240.

The previous prime is 67944491. The next prime is 67944493. The reversal of 67944492 is 29444976.

It is an interprime number because it is at equal distance from previous prime (67944491) and next prime (67944493).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (67944491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 351948 + ... + 352140.

Almost surely, 2^67944492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67944492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108466176).

67944492 is an abundant number, since it is smaller than the sum of its proper divisors (148987860).

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

67944492 is a wasteful number, since it uses less digits than its factorization.

67944492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 343 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 67944492 is about 8242.8448972427. The cubic root of 67944492 is about 408.0544189235.

The spelling of 67944492 in words is "sixty-seven million, nine hundred forty-four thousand, four hundred ninety-two".