1230042620 has 48 divisors (see below), whose sum is σ = 2635204320. Its totient is φ = 482144256.

The previous prime is 1230042617. The next prime is 1230042637. The reversal of 1230042620 is 262400321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1230042592 and 1230042601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415064 + ... + 418016.

It is an arithmetic number, because the mean of its divisors is an integer number (54900090).

Almost surely, 2^1230042620 is an apocalyptic number.

1230042620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230042620 is an abundant number, since it is smaller than the sum of its proper divisors (1405161700).

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

1230042620 is a wasteful number, since it uses less digits than its factorization.

1230042620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374 (or 3372 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1230042620 is about 35071.9634466050. The cubic root of 1230042620 is about 1071.4536448397.

Adding to 1230042620 its reverse (262400321), we get a palindrome (1492442941).

The spelling of 1230042620 in words is "one billion, two hundred thirty million, forty-two thousand, six hundred twenty".