302863428 has 96 divisors (see below), whose sum is σ = 926392320. Its totient is φ = 83734560.

The previous prime is 302863427. The next prime is 302863453. The reversal of 302863428 is 824368203.

302863428 is a `hidden beast` number, since 30 + 286 + 342 + 8 = 666.

It is a super-2 number, since 2×302863428² = 183452512039822368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 302863392 and 302863401.

It is not an unprimeable number, because it can be changed into a prime (302863423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16975 + ... + 29897.

It is an arithmetic number, because the mean of its divisors is an integer number (9649920).

Almost surely, 2^302863428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 302863428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463196160).

302863428 is an abundant number, since it is smaller than the sum of its proper divisors (623528892).

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

302863428 is a wasteful number, since it uses less digits than its factorization.

302863428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12974 (or 12966 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 302863428 is about 17402.9718151815. The cubic root of 302863428 is about 671.5560684050.

The spelling of 302863428 in words is "three hundred two million, eight hundred sixty-three thousand, four hundred twenty-eight".