67990480 has 40 divisors (see below), whose sum is σ = 167379912. Its totient is φ = 25595904.

The previous prime is 67990469. The next prime is 67990487. The reversal of 67990480 is 8409976.

It can be written as a sum of positive squares in 4 ways, for example, as 18766224 + 49224256 = 4332^2 + 7016^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67990487) 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, 23637 + ... + 26356.

Almost surely, 2^67990480 is an apocalyptic number.

It is an amenable number.

67990480 is an abundant number, since it is smaller than the sum of its proper divisors (99389432).

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

67990480 is a wasteful number, since it uses less digits than its factorization.

67990480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50023 (or 50017 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 67990480 is about 8245.6339962431. The cubic root of 67990480 is about 408.1464615790.

The spelling of 67990480 in words is "sixty-seven million, nine hundred ninety thousand, four hundred eighty".