347464820 has 24 divisors (see below), whose sum is σ = 743445864. Its totient is φ = 136363136.

The previous prime is 347464813. The next prime is 347464823. The reversal of 347464820 is 28464743.

It can be written as a sum of positive squares in 4 ways, for example, as 7873636 + 339591184 = 2806^2 + 18428^2 .

It is a super-2 number, since 2×347464820² = 241463602275264800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347464823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162839 + ... + 164958.

It is an arithmetic number, because the mean of its divisors is an integer number (30976911).

Almost surely, 2^347464820 is an apocalyptic number.

It is an amenable number.

347464820 is an abundant number, since it is smaller than the sum of its proper divisors (395981044).

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

347464820 is a wasteful number, since it uses less digits than its factorization.

347464820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327859 (or 327857 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 347464820 is about 18640.4082573317. The cubic root of 347464820 is about 703.0242082223.

The spelling of 347464820 in words is "three hundred forty-seven million, four hundred sixty-four thousand, eight hundred twenty".