1361402528 has 12 divisors (see below), whose sum is σ = 2680261290. Its totient is φ = 680701248.

The previous prime is 1361402527. The next prime is 1361402587. The reversal of 1361402528 is 8252041631.

It can be written as a sum of positive squares in only one way, i.e., 1275061264 + 86341264 = 35708^2 + 9292^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 42543829 = 1361402528 / (1 + 3 + 6 + 1 + 4 + 0 + 2 + 5 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 1361402494 and 1361402503.

It is not an unprimeable number, because it can be changed into a prime (1361402527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21271883 + ... + 21271946.

Almost surely, 2^1361402528 is an apocalyptic number.

It is an amenable number.

1361402528 is a deficient number, since it is larger than the sum of its proper divisors (1318858762).

1361402528 is an equidigital number, since it uses as much as digits as its factorization.

1361402528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42543839 (or 42543831 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1361402528 is about 36897.1886191889. The cubic root of 1361402528 is about 1108.3123796115.

The spelling of 1361402528 in words is "one billion, three hundred sixty-one million, four hundred two thousand, five hundred twenty-eight".