342691408 has 10 divisors (see below), whose sum is σ = 663964634. Its totient is φ = 171345696.

The previous prime is 342691357. The next prime is 342691409. The reversal of 342691408 is 804196243.

It can be written as a sum of positive squares in only one way, i.e., 228372544 + 114318864 = 15112^2 + 10692^2 .

It is a super-2 number, since 2×342691408² = 234874802234044928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342691409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10709091 + ... + 10709122.

Almost surely, 2^342691408 is an apocalyptic number.

It is an amenable number.

342691408 is a deficient number, since it is larger than the sum of its proper divisors (321273226).

342691408 is a wasteful number, since it uses less digits than its factorization.

342691408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21418221 (or 21418215 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 342691408 is about 18511.9261018404. The cubic root of 342691408 is about 699.7900104820.

The spelling of 342691408 in words is "three hundred forty-two million, six hundred ninety-one thousand, four hundred eight".