344891142 has 64 divisors (see below), whose sum is σ = 800280000. Its totient is φ = 109960704.

The previous prime is 344891119. The next prime is 344891147. The reversal of 344891142 is 241198443.

It is a happy number.

344891142 is a `hidden beast` number, since 34 + 489 + 1 + 142 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 344891097 and 344891106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344891147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175984 + ... + 177932.

It is an arithmetic number, because the mean of its divisors is an integer number (12504375).

Almost surely, 2^344891142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344891142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400140000).

344891142 is an abundant number, since it is smaller than the sum of its proper divisors (455388858).

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

344891142 is a wasteful number, since it uses less digits than its factorization.

344891142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102 (or 2096 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 344891142 is about 18571.2450309612. The cubic root of 344891142 is about 701.2841340015.

The spelling of 344891142 in words is "three hundred forty-four million, eight hundred ninety-one thousand, one hundred forty-two".