344031142440 has 64 divisors (see below), whose sum is σ = 1032169406400. Its totient is φ = 91734884352.

The previous prime is 344031142387. The next prime is 344031142463. The reversal of 344031142440 is 44241130443.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 344031142398 and 344031142407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1652931 + ... + 1849389.

It is an arithmetic number, because the mean of its divisors is an integer number (16127646975).

Almost surely, 2^344031142440 is an apocalyptic number.

344031142440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

344031142440 is an abundant number, since it is smaller than the sum of its proper divisors (688138263960).

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

344031142440 is a wasteful number, since it uses less digits than its factorization.

344031142440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211066 (or 211062 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 344031142440 its reverse (44241130443), we get a palindrome (388272272883).

The spelling of 344031142440 in words is "three hundred forty-four billion, thirty-one million, one hundred forty-two thousand, four hundred forty".