67913140 has 48 divisors (see below), whose sum is σ = 147329280. Its totient is φ = 26282880.

The previous prime is 67913081. The next prime is 67913149. The reversal of 67913140 is 4131976.

It is a happy number.

It is a super-2 number, since 2×67913140² = 9224389169319200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67913149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83335 + ... + 84145.

It is an arithmetic number, because the mean of its divisors is an integer number (3069360).

Almost surely, 2^67913140 is an apocalyptic number.

It is an amenable number.

67913140 is an abundant number, since it is smaller than the sum of its proper divisors (79416140).

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

67913140 is a wasteful number, since it uses less digits than its factorization.

67913140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 67913140 is about 8240.9429072164. The cubic root of 67913140 is about 407.9916456703.

The spelling of 67913140 in words is "sixty-seven million, nine hundred thirteen thousand, one hundred forty".