345356550 has 144 divisors (see below), whose sum is σ = 1156925952. Its totient is φ = 71755200.

The previous prime is 345356527. The next prime is 345356617. The reversal of 345356550 is 55653543.

345356550 is a `hidden beast` number, since 3 + 4 + 53 + 56 + 550 = 666.

It is a super-2 number, since 2×345356550² = 238542293255805000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 29667 + ... + 39633.

It is an arithmetic number, because the mean of its divisors is an integer number (8034208).

Almost surely, 2^345356550 is an apocalyptic number.

345356550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 345356550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (578462976).

345356550 is an abundant number, since it is smaller than the sum of its proper divisors (811569402).

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

345356550 is a wasteful number, since it uses less digits than its factorization.

345356550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10003 (or 9995 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The square root of 345356550 is about 18583.7711458143. The cubic root of 345356550 is about 701.5994378810.

The spelling of 345356550 in words is "three hundred forty-five million, three hundred fifty-six thousand, five hundred fifty".