349528905 has 64 divisors (see below), whose sum is σ = 690819840. Its totient is φ = 166233600.

The previous prime is 349528901. The next prime is 349528913. The reversal of 349528905 is 509825943.

349528905 is a `hidden beast` number, since 34 + 9 + 528 + 90 + 5 = 666.

It is not a de Polignac number, because 349528905 - 2² = 349528901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (349528901) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76485 + ... + 80925.

It is an arithmetic number, because the mean of its divisors is an integer number (10794060).

Almost surely, 2^349528905 is an apocalyptic number.

It is an amenable number.

349528905 is a deficient number, since it is larger than the sum of its proper divisors (341290935).

349528905 is a wasteful number, since it uses less digits than its factorization.

349528905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4519 (or 4513 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 349528905 is about 18695.6921508673. The cubic root of 349528905 is about 704.4135457927.

It can be divided in two parts, 3495 and 28905, that added together give a square (32400 = 180²).

The spelling of 349528905 in words is "three hundred forty-nine million, five hundred twenty-eight thousand, nine hundred five".