28153270 has 32 divisors (see below), whose sum is σ = 52690176. Its totient is φ = 10819200.

The previous prime is 28153259. The next prime is 28153273. The reversal of 28153270 is 7235182.

It is a super-2 number, since 2×28153270² = 1585213223385800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28153273) 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, 60840 + ... + 61300.

It is an arithmetic number, because the mean of its divisors is an integer number (1646568).

Almost surely, 2^28153270 is an apocalyptic number.

28153270 is a deficient number, since it is larger than the sum of its proper divisors (24536906).

28153270 is a wasteful number, since it uses less digits than its factorization.

28153270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 28153270 is about 5305.9655106305. The cubic root of 28153270 is about 304.2119583105.

The spelling of 28153270 in words is "twenty-eight million, one hundred fifty-three thousand, two hundred seventy".