28430376 has 64 divisors (see below), whose sum is σ = 77051520. Its totient is φ = 8689920.

The previous prime is 28430371. The next prime is 28430399. The reversal of 28430376 is 67303482.

It is not an unprimeable number, because it can be changed into a prime (28430371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91261 + ... + 91571.

It is an arithmetic number, because the mean of its divisors is an integer number (1203930).

Almost surely, 2^28430376 is an apocalyptic number.

28430376 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28430376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38525760).

28430376 is an abundant number, since it is smaller than the sum of its proper divisors (48621144).

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

28430376 is a wasteful number, since it uses less digits than its factorization.

28430376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 28430376 is about 5332.0142535443. The cubic root of 28430376 is about 305.2067969585.

The spelling of 28430376 in words is "twenty-eight million, four hundred thirty thousand, three hundred seventy-six".