342505440 has 72 divisors (see below), whose sum is σ = 1168804728. Its totient is φ = 91334400.

The previous prime is 342505439. The next prime is 342505463. The reversal of 342505440 is 44505243.

342505440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117486 + ... + 120365.

It is an arithmetic number, because the mean of its divisors is an integer number (16233399).

Almost surely, 2^342505440 is an apocalyptic number.

342505440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

342505440 is an abundant number, since it is smaller than the sum of its proper divisors (826299288).

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

342505440 is a wasteful number, since it uses less digits than its factorization.

342505440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237872 (or 237861 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 342505440 is about 18506.9024960959. The cubic root of 342505440 is about 699.6634027980.

The spelling of 342505440 in words is "three hundred forty-two million, five hundred five thousand, four hundred forty".