720935478 has 40 divisors (see below), whose sum is σ = 1617092400. Its totient is φ = 240064560.

The previous prime is 720935459. The next prime is 720935497. The reversal of 720935478 is 874539027.

It is an interprime number because it is at equal distance from previous prime (720935459) and next prime (720935497).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 225048 + ... + 228228.

It is an arithmetic number, because the mean of its divisors is an integer number (40427310).

Almost surely, 2^720935478 is an apocalyptic number.

720935478 is an abundant number, since it is smaller than the sum of its proper divisors (896156922).

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

720935478 is a wasteful number, since it uses less digits than its factorization.

720935478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4594 (or 4585 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 720935478 is about 26850.2416748900. The cubic root of 720935478 is about 896.6689531288.

The spelling of 720935478 in words is "seven hundred twenty million, nine hundred thirty-five thousand, four hundred seventy-eight".