344404742 has 16 divisors (see below), whose sum is σ = 563858064. Its totient is φ = 156468000.

The previous prime is 344404733. The next prime is 344404757. The reversal of 344404742 is 247404443.

It is a super-2 number, since 2×344404742² = 237229252624173128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 344404699 and 344404708.

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, 75692 + ... + 80112.

It is an arithmetic number, because the mean of its divisors is an integer number (35241129).

Almost surely, 2^344404742 is an apocalyptic number.

344404742 is a deficient number, since it is larger than the sum of its proper divisors (219453322).

344404742 is a wasteful number, since it uses less digits than its factorization.

344404742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7975.

The product of its (nonzero) digits is 43008, while the sum is 32.

The square root of 344404742 is about 18558.1448965138. The cubic root of 344404742 is about 700.9543052137.

The spelling of 344404742 in words is "three hundred forty-four million, four hundred four thousand, seven hundred forty-two".