67401396 has 72 divisors (see below), whose sum is σ = 187125120. Its totient is φ = 21140352.

The previous prime is 67401331. The next prime is 67401419. The reversal of 67401396 is 69310476.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 67401396.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14485 + ... + 18563.

It is an arithmetic number, because the mean of its divisors is an integer number (2598960).

Almost surely, 2^67401396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67401396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93562560).

67401396 is an abundant number, since it is smaller than the sum of its proper divisors (119723724).

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

67401396 is a wasteful number, since it uses less digits than its factorization.

67401396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115 (or 4101 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 67401396 is about 8209.8353211255. The cubic root of 67401396 is about 406.9642848082.

The spelling of 67401396 in words is "sixty-seven million, four hundred one thousand, three hundred ninety-six".