67402642 has 16 divisors (see below), whose sum is σ = 102896640. Its totient is φ = 33108192.

The previous prime is 67402631. The next prime is 67402651. The reversal of 67402642 is 24620476.

It is a super-2 number, since 2×67402642² = 9086232297160328, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 34278 + ... + 36190.

It is an arithmetic number, because the mean of its divisors is an integer number (6431040).

Almost surely, 2^67402642 is an apocalyptic number.

67402642 is a deficient number, since it is larger than the sum of its proper divisors (35493998).

67402642 is a wasteful number, since it uses less digits than its factorization.

67402642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 67402642 is about 8209.9112053664. The cubic root of 67402642 is about 406.9667925425.

The spelling of 67402642 in words is "sixty-seven million, four hundred two thousand, six hundred forty-two".