346453638 has 32 divisors (see below), whose sum is σ = 744906240. Its totient is φ = 107076960.

The previous prime is 346453609. The next prime is 346453643. The reversal of 346453638 is 836354643.

It is a self number, because there is not a number n which added to its sum of digits gives 346453638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26973 + ... + 37688.

It is an arithmetic number, because the mean of its divisors is an integer number (23278320).

Almost surely, 2^346453638 is an apocalyptic number.

346453638 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

346453638 is an abundant number, since it is smaller than the sum of its proper divisors (398452602).

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

346453638 is a wasteful number, since it uses less digits than its factorization.

346453638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64732.

The product of its digits is 622080, while the sum is 42.

The square root of 346453638 is about 18613.2651085187. The cubic root of 346453638 is about 702.3415720719.

It can be divided in two parts, 34645 and 3638, that added together give a palindrome (38283).

The spelling of 346453638 in words is "three hundred forty-six million, four hundred fifty-three thousand, six hundred thirty-eight".