1230020416 has 14 divisors (see below), whose sum is σ = 2440821890. Its totient is φ = 615010176.

The previous prime is 1230020399. The next prime is 1230020437. The reversal of 1230020416 is 6140200321.

It can be written as a sum of positive squares in only one way, i.e., 1102240000 + 127780416 = 33200^2 + 11304^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1230020393 and 1230020402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9609471 + ... + 9609598.

Almost surely, 2^1230020416 is an apocalyptic number.

1230020416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1230020416 is a deficient number, since it is larger than the sum of its proper divisors (1210801474).

1230020416 is an equidigital number, since it uses as much as digits as its factorization.

1230020416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19219081 (or 19219071 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1230020416 is about 35071.6468960327. The cubic root of 1230020416 is about 1071.4471977189.

Adding to 1230020416 its reverse (6140200321), we get a palindrome (7370220737).

The spelling of 1230020416 in words is "one billion, two hundred thirty million, twenty thousand, four hundred sixteen".