28550360 has 32 divisors (see below), whose sum is σ = 67033440. Its totient is φ = 10923264.

The previous prime is 28550351. The next prime is 28550371. The reversal of 28550360 is 6305582.

It is a super-2 number, since 2×28550360² = 1630246112259200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14597 + ... + 16436.

It is an arithmetic number, because the mean of its divisors is an integer number (2094795).

Almost surely, 2^28550360 is an apocalyptic number.

28550360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28550360 is an abundant number, since it is smaller than the sum of its proper divisors (38483080).

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

28550360 is a wasteful number, since it uses less digits than its factorization.

28550360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31067 (or 31063 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 28550360 is about 5343.2536904025. The cubic root of 28550360 is about 305.6355465628.

The spelling of 28550360 in words is "twenty-eight million, five hundred fifty thousand, three hundred sixty".