342446391 has 48 divisors (see below), whose sum is σ = 582603840. Its totient is φ = 189757440.

The previous prime is 342446339. The next prime is 342446399. The reversal of 342446391 is 193644243.

It is a happy number.

It is not a de Polignac number, because 342446391 - 2¹¹ = 342444343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342446399) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 601555 + ... + 602123.

It is an arithmetic number, because the mean of its divisors is an integer number (12137580).

Almost surely, 2^342446391 is an apocalyptic number.

342446391 is a deficient number, since it is larger than the sum of its proper divisors (240157449).

342446391 is a wasteful number, since it uses less digits than its factorization.

342446391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856 (or 853 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 342446391 is about 18505.3071036392. The cubic root of 342446391 is about 699.6231924403.

The spelling of 342446391 in words is "three hundred forty-two million, four hundred forty-six thousand, three hundred ninety-one".