1612251228 has 96 divisors (see below), whose sum is σ = 4444715520. Its totient is φ = 445328640.

The previous prime is 1612251203. The next prime is 1612251229. The reversal of 1612251228 is 8221522161.

It is a junction number, because it is equal to n+sod(n) for n = 1612251195 and 1612251204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612251229) 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, 299650 + ... + 304982.

It is an arithmetic number, because the mean of its divisors is an integer number (46299120).

Almost surely, 2^1612251228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1612251228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2222357760).

1612251228 is an abundant number, since it is smaller than the sum of its proper divisors (2832464292).

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

1612251228 is a wasteful number, since it uses less digits than its factorization.

1612251228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5467 (or 5465 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 1612251228 is about 40152.8483173984. The cubic root of 1612251228 is about 1172.5847422017.

Adding to 1612251228 its reverse (8221522161), we get a palindrome (9833773389).

The spelling of 1612251228 in words is "one billion, six hundred twelve million, two hundred fifty-one thousand, two hundred twenty-eight".