320748142 has 24 divisors (see below), whose sum is σ = 568346760. Its totient is φ = 134578080.

The previous prime is 320748121. The next prime is 320748143. The reversal of 320748142 is 241847023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320748143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39417 + ... + 46852.

It is an arithmetic number, because the mean of its divisors is an integer number (23681115).

Almost surely, 2^320748142 is an apocalyptic number.

320748142 is a deficient number, since it is larger than the sum of its proper divisors (247598618).

320748142 is a wasteful number, since it uses less digits than its factorization.

320748142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86308 (or 86295 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 320748142 is about 17909.4428165703. The cubic root of 320748142 is about 684.5230074776.

The spelling of 320748142 in words is "three hundred twenty million, seven hundred forty-eight thousand, one hundred forty-two".