342661557 has 24 divisors (see below), whose sum is σ = 540496800. Its totient is φ = 192482976.

The previous prime is 342661541. The next prime is 342661597. The reversal of 342661557 is 755166243.

It is not a de Polignac number, because 342661557 - 2⁴ = 342661541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342661597) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11082 + ... + 28427.

It is an arithmetic number, because the mean of its divisors is an integer number (22520700).

Almost surely, 2^342661557 is an apocalyptic number.

It is an amenable number.

342661557 is a deficient number, since it is larger than the sum of its proper divisors (197835243).

342661557 is a wasteful number, since it uses less digits than its factorization.

342661557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39585 (or 39578 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 342661557 is about 18511.1198202594. The cubic root of 342661557 is about 699.7696909003.

The spelling of 342661557 in words is "three hundred forty-two million, six hundred sixty-one thousand, five hundred fifty-seven".