349619550 has 192 divisors, whose sum is σ = 1069645824. Its totient is φ = 73814400.

The previous prime is 349619537. The next prime is 349619591. The reversal of 349619550 is 55916943.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 748417 + ... + 748883.

It is an arithmetic number, because the mean of its divisors is an integer number (5571072).

Almost surely, 2^349619550 is an apocalyptic number.

349619550 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 349619550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534822912).

349619550 is an abundant number, since it is smaller than the sum of its proper divisors (720026274).

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

349619550 is a wasteful number, since it uses less digits than its factorization.

349619550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 349619550 is about 18698.1162152769. The cubic root of 349619550 is about 704.4744335057.

The spelling of 349619550 in words is "three hundred forty-nine million, six hundred nineteen thousand, five hundred fifty".