1230645770 has 16 divisors (see below), whose sum is σ = 2331750240. Its totient is φ = 466349904.

The previous prime is 1230645763. The next prime is 1230645803. The reversal of 1230645770 is 775460321.

It is a super-2 number, since 2×1230645770² = 3028978022437785800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1230645770.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3238352 + ... + 3238731.

It is an arithmetic number, because the mean of its divisors is an integer number (145734390).

Almost surely, 2^1230645770 is an apocalyptic number.

1230645770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230645770 is a deficient number, since it is larger than the sum of its proper divisors (1101104470).

1230645770 is a wasteful number, since it uses less digits than its factorization.

1230645770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6477109.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 1230645770 is about 35080.5611414641. The cubic root of 1230645770 is about 1071.6287449149.

The spelling of 1230645770 in words is "one billion, two hundred thirty million, six hundred forty-five thousand, seven hundred seventy".