320241402 has 48 divisors (see below), whose sum is σ = 755674920. Its totient is φ = 97422336.

The previous prime is 320241391. The next prime is 320241419. The reversal of 320241402 is 204142023.

320241402 is a `hidden beast` number, since 3 + 20 + 241 + 402 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 278522721 + 41718681 = 16689^2 + 6459^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13138 + ... + 28514.

Almost surely, 2^320241402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320241402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377837460).

320241402 is an abundant number, since it is smaller than the sum of its proper divisors (435433518).

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

320241402 is a wasteful number, since it uses less digits than its factorization.

320241402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15487 (or 15484 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 320241402 is about 17895.2899389756. The cubic root of 320241402 is about 684.1623319441.

Adding to 320241402 its reverse (204142023), we get a palindrome (524383425).

The spelling of 320241402 in words is "three hundred twenty million, two hundred forty-one thousand, four hundred two".