349787136 has 88 divisors (see below), whose sum is σ = 962646784. Its totient is φ = 112803840.

The previous prime is 349787129. The next prime is 349787147. The reversal of 349787136 is 631787943.

It is a super-2 number, since 2×349787136² = 244702081022164992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93396 + ... + 97068.

It is an arithmetic number, because the mean of its divisors is an integer number (10939168).

Almost surely, 2^349787136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 349787136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (481323392).

349787136 is an abundant number, since it is smaller than the sum of its proper divisors (612859648).

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

349787136 is a wasteful number, since it uses less digits than its factorization.

349787136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727 (or 3709 counting only the distinct ones).

The product of its digits is 762048, while the sum is 48.

The square root of 349787136 is about 18702.5970389141. The cubic root of 349787136 is about 704.5869760241.

The spelling of 349787136 in words is "three hundred forty-nine million, seven hundred eighty-seven thousand, one hundred thirty-six".