349713990 has 64 divisors (see below), whose sum is σ = 934225920. Its totient is φ = 93091680.

The previous prime is 349713989. The next prime is 349713997. The reversal of 349713990 is 99317943.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349713997) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 266917 + ... + 268223.

It is an arithmetic number, because the mean of its divisors is an integer number (14597280).

Almost surely, 2^349713990 is an apocalyptic number.

349713990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

349713990 is an abundant number, since it is smaller than the sum of its proper divisors (584511930).

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

349713990 is a wasteful number, since it uses less digits than its factorization.

349713990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314 (or 2308 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 349713990 is about 18700.6414328493. The cubic root of 349713990 is about 704.5378591884.

It can be divided in two parts, 349713 and 990, that added together give a triangular number (350703 = T₈₃₇).

The spelling of 349713990 in words is "three hundred forty-nine million, seven hundred thirteen thousand, nine hundred ninety".