1238630402 has 8 divisors (see below), whose sum is σ = 1861247376. Its totient is φ = 618214612.

The previous prime is 1238630401. The next prime is 1238630411. The reversal of 1238630402 is 2040368321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1238630401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548888 + ... + 551139.

It is an arithmetic number, because the mean of its divisors is an integer number (232655922).

Almost surely, 2^1238630402 is an apocalyptic number.

1238630402 is a deficient number, since it is larger than the sum of its proper divisors (622616974).

1238630402 is a wasteful number, since it uses less digits than its factorization.

1238630402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100592.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1238630402 is about 35194.1813656746. The cubic root of 1238630402 is about 1073.9413849762.

Adding to 1238630402 its reverse (2040368321), we get a palindrome (3278998723).

The spelling of 1238630402 in words is "one billion, two hundred thirty-eight million, six hundred thirty thousand, four hundred two".