67140416 has 28 divisors (see below), whose sum is σ = 152265888. Its totient is φ = 28774272.

The previous prime is 67140397. The next prime is 67140439. The reversal of 67140416 is 61404176.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74486 + ... + 75381.

Almost surely, 2^67140416 is an apocalyptic number.

It is an amenable number.

67140416 is an abundant number, since it is smaller than the sum of its proper divisors (85125472).

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

67140416 is a wasteful number, since it uses less digits than its factorization.

67140416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149886 (or 149876 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 67140416 is about 8193.9255549462. The cubic root of 67140416 is about 406.4383465583.

The spelling of 67140416 in words is "sixty-seven million, one hundred forty thousand, four hundred sixteen".