28430488 has 32 divisors (see below), whose sum is σ = 55157760. Its totient is φ = 13730080.

The previous prime is 28430483. The next prime is 28430489. The reversal of 28430488 is 88403482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28430483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30753 + ... + 31663.

It is an arithmetic number, because the mean of its divisors is an integer number (1723680).

Almost surely, 2^28430488 is an apocalyptic number.

It is an amenable number.

28430488 is a deficient number, since it is larger than the sum of its proper divisors (26727272).

28430488 is a wasteful number, since it uses less digits than its factorization.

28430488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 28430488 is about 5332.0247561316. The cubic root of 28430488 is about 305.2071977401.

The spelling of 28430488 in words is "twenty-eight million, four hundred thirty thousand, four hundred eighty-eight".