67270146 has 32 divisors (see below), whose sum is σ = 144925440. Its totient is φ = 20747664.

The previous prime is 67270121. The next prime is 67270153. The reversal of 67270146 is 64107276.

It is a super-2 number, since 2×67270146² = 9050545085722632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1960 + ... + 11763.

It is an arithmetic number, because the mean of its divisors is an integer number (4528920).

Almost surely, 2^67270146 is an apocalyptic number.

67270146 is an abundant number, since it is smaller than the sum of its proper divisors (77655294).

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

67270146 is a wasteful number, since it uses less digits than its factorization.

67270146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13790.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 67270146 is about 8201.8379647491. The cubic root of 67270146 is about 406.6999541267.

The spelling of 67270146 in words is "sixty-seven million, two hundred seventy thousand, one hundred forty-six".