67868460 has 144 divisors (see below), whose sum is σ = 227066112. Its totient is φ = 16272000.

The previous prime is 67868459. The next prime is 67868477. The reversal of 67868460 is 6486876.

It is a happy number.

It is a super-2 number, since 2×67868460² = 9212255725543200, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 298867 + ... + 299093.

It is an arithmetic number, because the mean of its divisors is an integer number (1576848).

Almost surely, 2^67868460 is an apocalyptic number.

67868460 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 67868460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113533056).

67868460 is an abundant number, since it is smaller than the sum of its proper divisors (159197652).

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

67868460 is a wasteful number, since it uses less digits than its factorization.

67868460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 67868460 is about 8238.2316063582. The cubic root of 67868460 is about 407.9021535837.

The spelling of 67868460 in words is "sixty-seven million, eight hundred sixty-eight thousand, four hundred sixty".