67490304 has 80 divisors (see below), whose sum is σ = 205516608. Its totient is φ = 19279872.

The previous prime is 67490237. The next prime is 67490309. The reversal of 67490304 is 40309476.

It is a super-2 number, since 2×67490304² = 9109882268024832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67490309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7614 + ... + 13890.

Almost surely, 2^67490304 is an apocalyptic number.

67490304 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67490304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102758304).

67490304 is an abundant number, since it is smaller than the sum of its proper divisors (138026304).

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

67490304 is an equidigital number, since it uses as much as digits as its factorization.

67490304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6305 (or 6289 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 67490304 is about 8215.2482616169. The cubic root of 67490304 is about 407.1431460052.

The spelling of 67490304 in words is "sixty-seven million, four hundred ninety thousand, three hundred four".