348021720 has 48 divisors (see below), whose sum is σ = 1131071760. Its totient is φ = 92805696.

The previous prime is 348021719. The next prime is 348021731. The reversal of 348021720 is 27120843.

It is a super-2 number, since 2×348021720² = 242238235183516800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 483004 + ... + 483723.

It is an arithmetic number, because the mean of its divisors is an integer number (23563995).

Almost surely, 2^348021720 is an apocalyptic number.

348021720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

348021720 is an abundant number, since it is smaller than the sum of its proper divisors (783050040).

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

348021720 is a wasteful number, since it uses less digits than its factorization.

348021720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966744 (or 966737 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 348021720 is about 18655.3402542007. The cubic root of 348021720 is about 703.3995989366.

It can be divided in two parts, 3480 and 21720, that added together give a triangular number (25200 = T₂₂₄).

The spelling of 348021720 in words is "three hundred forty-eight million, twenty-one thousand, seven hundred twenty".