342351440 has 80 divisors (see below), whose sum is σ = 849320640. Its totient is φ = 127887360.

The previous prime is 342351407. The next prime is 342351463. The reversal of 342351440 is 44153243.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 188135 + ... + 189945.

It is an arithmetic number, because the mean of its divisors is an integer number (10616508).

Almost surely, 2^342351440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342351440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (424660320).

342351440 is an abundant number, since it is smaller than the sum of its proper divisors (506969200).

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

342351440 is a wasteful number, since it uses less digits than its factorization.

342351440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980 (or 1974 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 342351440 is about 18502.7414185034. The cubic root of 342351440 is about 699.5585243500.

The spelling of 342351440 in words is "three hundred forty-two million, three hundred fifty-one thousand, four hundred forty".