1230402436 has 6 divisors (see below), whose sum is σ = 2153204270. Its totient is φ = 615201216.

The previous prime is 1230402409. The next prime is 1230402451. The reversal of 1230402436 is 6342040321.

It can be written as a sum of positive squares in only one way, i.e., 650556036 + 579846400 = 25506^2 + 24080^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1230402436.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153800301 + ... + 153800308.

Almost surely, 2^1230402436 is an apocalyptic number.

It is an amenable number.

1230402436 is a deficient number, since it is larger than the sum of its proper divisors (922801834).

1230402436 is a wasteful number, since it uses less digits than its factorization.

1230402436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307600613 (or 307600611 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1230402436 is about 35077.0927529634. The cubic root of 1230402436 is about 1071.5581096695.

Adding to 1230402436 its reverse (6342040321), we get a palindrome (7572442757).

The spelling of 1230402436 in words is "one billion, two hundred thirty million, four hundred two thousand, four hundred thirty-six".