67349880 has 288 divisors, whose sum is σ = 251793360. Its totient is φ = 16174080.

The previous prime is 67349797. The next prime is 67349881. The reversal of 67349880 is 8894376.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67349881) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1642660 + ... + 1642700.

Almost surely, 2^67349880 is an apocalyptic number.

67349880 is a gapful number since it is divisible by the number (60) 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 67349880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125896680).

67349880 is an abundant number, since it is smaller than the sum of its proper divisors (184443480).

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

67349880 is a wasteful number, since it uses less digits than its factorization.

67349880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 67349880 is about 8206.6972650391. The cubic root of 67349880 is about 406.8605752069.

The spelling of 67349880 in words is "sixty-seven million, three hundred forty-nine thousand, eight hundred eighty".