1230456838 has 32 divisors (see below), whose sum is σ = 2134278720. Its totient is φ = 526955520.

The previous prime is 1230456827. The next prime is 1230456881. The reversal of 1230456838 is 8386540321.

It is a self number, because there is not a number n which added to its sum of digits gives 1230456838.

It is a congruent 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, 11778 + ... + 50986.

It is an arithmetic number, because the mean of its divisors is an integer number (66696210).

Almost surely, 2^1230456838 is an apocalyptic number.

1230456838 is a deficient number, since it is larger than the sum of its proper divisors (903821882).

1230456838 is a wasteful number, since it uses less digits than its factorization.

1230456838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39312.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 1230456838 is about 35077.8682077460. The cubic root of 1230456838 is about 1071.5739023466.

The spelling of 1230456838 in words is "one billion, two hundred thirty million, four hundred fifty-six thousand, eight hundred thirty-eight".