1303390252 has 6 divisors (see below), whose sum is σ = 2280932948. Its totient is φ = 651695124.

The previous prime is 1303390247. The next prime is 1303390267. The reversal of 1303390252 is 2520933031.

It is a super-2 number, since 2×1303390252² = 3397652298017247008, 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 1303390252.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162923778 + ... + 162923785.

Almost surely, 2^1303390252 is an apocalyptic number.

It is an amenable number.

1303390252 is a deficient number, since it is larger than the sum of its proper divisors (977542696).

1303390252 is a wasteful number, since it uses less digits than its factorization.

1303390252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325847567 (or 325847565 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 1303390252 is about 36102.4964787755. The cubic root of 1303390252 is about 1092.3408023122.

It can be divided in two parts, 13033 and 90252, that added together give a triangular number (103285 = T₄₅₄).

The spelling of 1303390252 in words is "one billion, three hundred three million, three hundred ninety thousand, two hundred fifty-two".