1230623898 has 24 divisors (see below), whose sum is σ = 2813374368. Its totient is φ = 351541872.

The previous prime is 1230623893. The next prime is 1230623917. The reversal of 1230623898 is 8983260321.

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

It is not an unprimeable number, because it can be changed into a prime (1230623893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224640 + ... + 230052.

It is an arithmetic number, because the mean of its divisors is an integer number (117223932).

Almost surely, 2^1230623898 is an apocalyptic number.

1230623898 is an abundant number, since it is smaller than the sum of its proper divisors (1582750470).

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

1230623898 is an frugal number, since it uses more digits than its factorization.

1230623898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10838 (or 5425 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1230623898 is about 35080.2494004817. The cubic root of 1230623898 is about 1071.6223962690.

Multiplying 1230623898 by its sum of digits (42), we get a square (51686203716 = 227346²).

1230623898 divided by its sum of digits (42) gives a square (29300569 = 5413²).

The spelling of 1230623898 in words is "one billion, two hundred thirty million, six hundred twenty-three thousand, eight hundred ninety-eight".