344742156 has 144 divisors (see below), whose sum is σ = 1038360960. Its totient is φ = 98910720.

The previous prime is 344742149. The next prime is 344742161. The reversal of 344742156 is 651247443.

344742156 is a `hidden beast` number, since 34 + 474 + 2 + 156 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 344742156.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202300 + ... + 203996.

It is an arithmetic number, because the mean of its divisors is an integer number (7210840).

Almost surely, 2^344742156 is an apocalyptic number.

344742156 is a gapful number since it is divisible by the number (36) 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 344742156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519180480).

344742156 is an abundant number, since it is smaller than the sum of its proper divisors (693618804).

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

344742156 is a wasteful number, since it uses less digits than its factorization.

344742156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746 (or 1732 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 344742156 is about 18567.2333964972. The cubic root of 344742156 is about 701.1831392686.

Adding to 344742156 its reverse (651247443), we get a palindrome (995989599).

The spelling of 344742156 in words is "three hundred forty-four million, seven hundred forty-two thousand, one hundred fifty-six".