1951842228 has 48 divisors (see below), whose sum is σ = 5331871104. Its totient is φ = 544066560.

The previous prime is 1951842173. The next prime is 1951842239. The reversal of 1951842228 is 8222481591.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1951842228.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279925 + ... + 286812.

It is an arithmetic number, because the mean of its divisors is an integer number (111080648).

Almost surely, 2^1951842228 is an apocalyptic number.

It is an amenable number.

1951842228 is an abundant number, since it is smaller than the sum of its proper divisors (3380028876).

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

1951842228 is a wasteful number, since it uses less digits than its factorization.

1951842228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566792 (or 566790 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 1951842228 is about 44179.6585319534. The cubic root of 1951842228 is about 1249.7262820405.

The spelling of 1951842228 in words is "one billion, nine hundred fifty-one million, eight hundred forty-two thousand, two hundred twenty-eight".