346821804 has 72 divisors (see below), whose sum is σ = 1045986480. Its totient is φ = 99090432.

The previous prime is 346821793. The next prime is 346821809. The reversal of 346821804 is 408128643.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (346821809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27477 + ... + 38060.

It is an arithmetic number, because the mean of its divisors is an integer number (14527590).

Almost surely, 2^346821804 is an apocalyptic number.

It is an amenable number.

346821804 is an abundant number, since it is smaller than the sum of its proper divisors (699164676).

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

346821804 is a wasteful number, since it uses less digits than its factorization.

346821804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65564 (or 65549 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 346821804 is about 18623.1523647314. The cubic root of 346821804 is about 702.5902698470.

The spelling of 346821804 in words is "three hundred forty-six million, eight hundred twenty-one thousand, eight hundred four".