28463130 has 64 divisors (see below), whose sum is σ = 76377600. Its totient is φ = 7542720.

The previous prime is 28463129. The next prime is 28463131. The reversal of 28463130 is 3136482.

It is a happy number.

28463130 is a `hidden beast` number, since 28 + 4 + 631 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (28463129) and next prime (28463131).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 28463094 and 28463103.

It is not an unprimeable number, because it can be changed into a prime (28463131) 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, 72976 + ... + 73364.

It is an arithmetic number, because the mean of its divisors is an integer number (1193400).

Almost surely, 2^28463130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28463130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38188800).

28463130 is an abundant number, since it is smaller than the sum of its proper divisors (47914470).

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

28463130 is a wasteful number, since it uses less digits than its factorization.

28463130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 28463130 is about 5335.0848165704. The cubic root of 28463130 is about 305.3239592837.

The spelling of 28463130 in words is "twenty-eight million, four hundred sixty-three thousand, one hundred thirty".