302140020 has 96 divisors (see below), whose sum is σ = 1041239808. Its totient is φ = 63747072.

The previous prime is 302140019. The next prime is 302140037. The reversal of 302140020 is 20041203.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 302139978 and 302140005.

It is a congruent number.

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, 22209 + ... + 33128.

It is an arithmetic number, because the mean of its divisors is an integer number (10846248).

Almost surely, 2^302140020 is an apocalyptic number.

302140020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

302140020 is an abundant number, since it is smaller than the sum of its proper divisors (739099788).

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

302140020 is a wasteful number, since it uses less digits than its factorization.

302140020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55369 (or 55367 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 302140020 is about 17382.1753529298. The cubic root of 302140020 is about 671.0209577506.

Adding to 302140020 its reverse (20041203), we get a palindrome (322181223).

The spelling of 302140020 in words is "three hundred two million, one hundred forty thousand, twenty".