1230812786 has 16 divisors (see below), whose sum is σ = 2121016320. Its totient is φ = 524728320.

The previous prime is 1230812783. The next prime is 1230812797. The reversal of 1230812786 is 6872180321.

It is a super-2 number, since 2×1230812786² = 3029800228362163592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1230812783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227471 + ... + 232818.

It is an arithmetic number, because the mean of its divisors is an integer number (132563520).

Almost surely, 2^1230812786 is an apocalyptic number.

1230812786 is a deficient number, since it is larger than the sum of its proper divisors (890203534).

1230812786 is a wasteful number, since it uses less digits than its factorization.

1230812786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460489.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 1230812786 is about 35082.9415243363. The cubic root of 1230812786 is about 1071.6772211038.

The spelling of 1230812786 in words is "one billion, two hundred thirty million, eight hundred twelve thousand, seven hundred eighty-six".