342402040 has 32 divisors (see below), whose sum is σ = 810954000. Its totient is φ = 129752064.

The previous prime is 342402031. The next prime is 342402061. The reversal of 342402040 is 40204243.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 342401999 and 342402017.

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, 224505 + ... + 226024.

Almost surely, 2^342402040 is an apocalyptic number.

It is an amenable number.

342402040 is an abundant number, since it is smaller than the sum of its proper divisors (468551960).

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

342402040 is a wasteful number, since it uses less digits than its factorization.

342402040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450559 (or 450555 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 342402040 is about 18504.1087329274. The cubic root of 342402040 is about 699.5929878801.

Adding to 342402040 its reverse (40204243), we get a palindrome (382606283).

The spelling of 342402040 in words is "three hundred forty-two million, four hundred two thousand, forty".