28294960 has 20 divisors (see below), whose sum is σ = 65785968. Its totient is φ = 11317952.

The previous prime is 28294957. The next prime is 28294967. The reversal of 28294960 is 6949282.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×28294960² = 1601209522803200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (28294967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176764 + ... + 176923.

Almost surely, 2^28294960 is an apocalyptic number.

28294960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28294960 is an abundant number, since it is smaller than the sum of its proper divisors (37491008).

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

28294960 is a wasteful number, since it uses less digits than its factorization.

28294960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353700 (or 353694 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 28294960 is about 5319.3007059199. The cubic root of 28294960 is about 304.7214513208.

The spelling of 28294960 in words is "twenty-eight million, two hundred ninety-four thousand, nine hundred sixty".