228958997652 has 240 divisors, whose sum is σ = 748148784768. Its totient is φ = 59317505280.

The previous prime is 228958997647. The next prime is 228958997671. The reversal of 228958997652 is 256799859822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9892798 + ... + 9915914.

Almost surely, 2^228958997652 is an apocalyptic number.

228958997652 is a gapful number since it is divisible by the number (22) 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 228958997652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374074392384).

228958997652 is an abundant number, since it is smaller than the sum of its proper divisors (519189787116).

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

228958997652 is a wasteful number, since it uses less digits than its factorization.

228958997652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23548 (or 23537 counting only the distinct ones).

The product of its digits is 391910400, while the sum is 72.

The spelling of 228958997652 in words is "two hundred twenty-eight billion, nine hundred fifty-eight million, nine hundred ninety-seven thousand, six hundred fifty-two".