1230390712 has 8 divisors (see below), whose sum is σ = 2306982600. Its totient is φ = 615195352.

The previous prime is 1230390701. The next prime is 1230390719. The reversal of 1230390712 is 2170930321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1230390712² = 3027722608351733888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230390719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76899412 + ... + 76899427.

It is an arithmetic number, because the mean of its divisors is an integer number (288372825).

Almost surely, 2^1230390712 is an apocalyptic number.

It is an amenable number.

1230390712 is a deficient number, since it is larger than the sum of its proper divisors (1076591888).

1230390712 is a wasteful number, since it uses less digits than its factorization.

1230390712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153798845 (or 153798841 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 1230390712 is about 35076.9256349527. The cubic root of 1230390712 is about 1071.5547061795.

The spelling of 1230390712 in words is "one billion, two hundred thirty million, three hundred ninety thousand, seven hundred twelve".