67213642 has 16 divisors (see below), whose sum is σ = 104620032. Its totient is φ = 32351760.

The previous prime is 67213609. The next prime is 67213669. The reversal of 67213642 is 24631276.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 9463 + ... + 14965.

It is an arithmetic number, because the mean of its divisors is an integer number (6538752).

Almost surely, 2^67213642 is an apocalyptic number.

67213642 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

67213642 is a deficient number, since it is larger than the sum of its proper divisors (37406390).

67213642 is a wasteful number, since it uses less digits than its factorization.

67213642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5733.

The product of its digits is 12096, while the sum is 31.

The square root of 67213642 is about 8198.3926473425. The cubic root of 67213642 is about 406.5860521326.

The spelling of 67213642 in words is "sixty-seven million, two hundred thirteen thousand, six hundred forty-two".