342609408 has 120 divisors (see below), whose sum is σ = 997425000. Its totient is φ = 113209344.

The previous prime is 342609359. The next prime is 342609433. The reversal of 342609408 is 804906243.

It is a happy number.

342609408 is a `hidden beast` number, since 3 + 4 + 2 + 609 + 40 + 8 = 666.

It is a super-2 number, since 2×342609408² = 234762412900220928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 686343 + ... + 686841.

It is an arithmetic number, because the mean of its divisors is an integer number (8311875).

Almost surely, 2^342609408 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 342609408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498712500).

342609408 is an abundant number, since it is smaller than the sum of its proper divisors (654815592).

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

342609408 is a wasteful number, since it uses less digits than its factorization.

342609408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 342609408 is about 18509.7111808910. The cubic root of 342609408 is about 699.7341902338.

The spelling of 342609408 in words is "three hundred forty-two million, six hundred nine thousand, four hundred eight".