349899480 has 256 divisors, whose sum is σ = 1376870400. Its totient is φ = 77345280.

The previous prime is 349899479. The next prime is 349899493. The reversal of 349899480 is 84998943.

It is a super-2 number, since 2×349899480² = 244859292208540800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 233614 + ... + 235106.

It is an arithmetic number, because the mean of its divisors is an integer number (5378400).

Almost surely, 2^349899480 is an apocalyptic number.

349899480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 349899480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688435200).

349899480 is an abundant number, since it is smaller than the sum of its proper divisors (1026970920).

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

349899480 is a wasteful number, since it uses less digits than its factorization.

349899480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551 (or 1541 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 349899480 is about 18705.6002309469. The cubic root of 349899480 is about 704.6624006068.

The spelling of 349899480 in words is "three hundred forty-nine million, eight hundred ninety-nine thousand, four hundred eighty".