229051540 has 48 divisors (see below), whose sum is σ = 521180352. Its totient is φ = 84220416.

The previous prime is 229051499. The next prime is 229051561. The reversal of 229051540 is 45150922.

It is a junction number, because it is equal to n+sod(n) for n = 229051499 and 229051508.

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 15 ways as a sum of consecutive naturals, for example, 6787 + ... + 22453.

It is an arithmetic number, because the mean of its divisors is an integer number (10857924).

Almost surely, 2^229051540 is an apocalyptic number.

229051540 is a gapful number since it is divisible by the number (20) 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 229051540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260590176).

229051540 is an abundant number, since it is smaller than the sum of its proper divisors (292128812).

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

229051540 is a wasteful number, since it uses less digits than its factorization.

229051540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15736 (or 15734 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 229051540 is about 15134.4487841480. The cubic root of 229051540 is about 611.8492124276.

The spelling of 229051540 in words is "two hundred twenty-nine million, fifty-one thousand, five hundred forty".