68470420 has 24 divisors (see below), whose sum is σ = 143990784. Its totient is φ = 27349536.

The previous prime is 68470411. The next prime is 68470481. The reversal of 68470420 is 2407486.

It is a congruent number.

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, 15277 + ... + 19243.

It is an arithmetic number, because the mean of its divisors is an integer number (5999616).

Almost surely, 2^68470420 is an apocalyptic number.

It is an amenable number.

68470420 is an abundant number, since it is smaller than the sum of its proper divisors (75520364).

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

68470420 is a wasteful number, since it uses less digits than its factorization.

68470420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4839 (or 4837 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 68470420 is about 8274.6854925127. The cubic root of 68470420 is about 409.1045697197.

The spelling of 68470420 in words is "sixty-eight million, four hundred seventy thousand, four hundred twenty".