342420545 has 32 divisors (see below), whose sum is σ = 458745120. Its totient is φ = 244142080.

The previous prime is 342420509. The next prime is 342420553. The reversal of 342420545 is 545024243.

It can be written as a sum of positive squares in 16 ways, for example, as 59536 + 342361009 = 244^2 + 18503^2 .

It is not a de Polignac number, because 342420545 - 2⁸ = 342420289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129335 + ... + 131955.

It is an arithmetic number, because the mean of its divisors is an integer number (14335785).

Almost surely, 2^342420545 is an apocalyptic number.

It is an amenable number.

342420545 is a deficient number, since it is larger than the sum of its proper divisors (116324575).

342420545 is a wasteful number, since it uses less digits than its factorization.

342420545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 342420545 is about 18504.6087502546. The cubic root of 342420545 is about 699.6055907402.

Adding to 342420545 its reverse (545024243), we get a palindrome (887444788).

The spelling of 342420545 in words is "three hundred forty-two million, four hundred twenty thousand, five hundred forty-five".