1230217378 has 32 divisors (see below), whose sum is σ = 2054243520. Its totient is φ = 548976960.

The previous prime is 1230217343. The next prime is 1230217409. The reversal of 1230217378 is 8737120321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87001 + ... + 100147.

It is an arithmetic number, because the mean of its divisors is an integer number (64195110).

Almost surely, 2^1230217378 is an apocalyptic number.

1230217378 is a deficient number, since it is larger than the sum of its proper divisors (824026142).

1230217378 is a wasteful number, since it uses less digits than its factorization.

1230217378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13282.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 1230217378 is about 35074.4547783711. The cubic root of 1230217378 is about 1071.5043846071.

Adding to 1230217378 its reverse (8737120321), we get a palindrome (9967337699).

The spelling of 1230217378 in words is "one billion, two hundred thirty million, two hundred seventeen thousand, three hundred seventy-eight".