342120390 has 32 divisors (see below), whose sum is σ = 826610400. Its totient is φ = 90618624.

The previous prime is 342120349. The next prime is 342120407. The reversal of 342120390 is 93021243.

It is a super-2 number, since 2×342120390² = 234092722507504200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 342120390.

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, 33799 + ... + 42738.

It is an arithmetic number, because the mean of its divisors is an integer number (25831575).

Almost surely, 2^342120390 is an apocalyptic number.

342120390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

342120390 is an abundant number, since it is smaller than the sum of its proper divisors (484490010).

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

342120390 is a wasteful number, since it uses less digits than its factorization.

342120390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76696.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 342120390 is about 18496.4966953204. The cubic root of 342120390 is about 699.4011136180.

The spelling of 342120390 in words is "three hundred forty-two million, one hundred twenty thousand, three hundred ninety".