228653007 has 32 divisors (see below), whose sum is σ = 343160064. Its totient is φ = 134208000.

The previous prime is 228652999. The next prime is 228653017. The reversal of 228653007 is 700356822.

It is not a de Polignac number, because 228653007 - 2³ = 228652999 is a prime.

It is a super-2 number, since 2×228653007² = 104564395220284098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228653017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489388 + ... + 489854.

It is an arithmetic number, because the mean of its divisors is an integer number (10723752).

Almost surely, 2^228653007 is an apocalyptic number.

228653007 is a deficient number, since it is larger than the sum of its proper divisors (114507057).

228653007 is a wasteful number, since it uses less digits than its factorization.

228653007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 228653007 is about 15121.2766326127. The cubic root of 228653007 is about 611.4941487281.

The spelling of 228653007 in words is "two hundred twenty-eight million, six hundred fifty-three thousand, seven".