67438452 has 24 divisors (see below), whose sum is σ = 157795456. Its totient is φ = 22416768.

The previous prime is 67438447. The next prime is 67438477. The reversal of 67438452 is 25483476.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 67438452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3253 + ... + 12060.

Almost surely, 2^67438452 is an apocalyptic number.

It is an amenable number.

67438452 is an abundant number, since it is smaller than the sum of its proper divisors (90357004).

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

67438452 is a wasteful number, since it uses less digits than its factorization.

67438452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15687 (or 15685 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 67438452 is about 8212.0918163401. The cubic root of 67438452 is about 407.0388515413.

The spelling of 67438452 in words is "sixty-seven million, four hundred thirty-eight thousand, four hundred fifty-two".