342040440 has 64 divisors (see below), whose sum is σ = 1172712960. Its totient is φ = 78180480.

The previous prime is 342040423. The next prime is 342040483. The reversal of 342040440 is 44040243.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 202756 + ... + 204435.

It is an arithmetic number, because the mean of its divisors is an integer number (18323640).

Almost surely, 2^342040440 is an apocalyptic number.

342040440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

342040440 is an abundant number, since it is smaller than the sum of its proper divisors (830672520).

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

342040440 is a wasteful number, since it uses less digits than its factorization.

342040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407212 (or 407208 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 342040440 is about 18494.3353489656. The cubic root of 342040440 is about 699.3466284358.

Adding to 342040440 its reverse (44040243), we get a palindrome (386080683).

The spelling of 342040440 in words is "three hundred forty-two million, forty thousand, four hundred forty".