303021342 has 96 divisors (see below), whose sum is σ = 750247680. Its totient is φ = 87713280.

The previous prime is 303021289. The next prime is 303021347. The reversal of 303021342 is 243120303.

303021342 is a `hidden beast` number, since 303 + 0 + 21 + 342 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303021347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 267834 + ... + 268962.

It is an arithmetic number, because the mean of its divisors is an integer number (7815080).

Almost surely, 2^303021342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303021342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375123840).

303021342 is an abundant number, since it is smaller than the sum of its proper divisors (447226338).

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

303021342 is a wasteful number, since it uses less digits than its factorization.

303021342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218 (or 1215 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 303021342 is about 17407.5082076672. The cubic root of 303021342 is about 671.6727653155.

Adding to 303021342 its reverse (243120303), we get a palindrome (546141645).

The spelling of 303021342 in words is "three hundred three million, twenty-one thousand, three hundred forty-two".