1302742228 has 12 divisors (see below), whose sum is σ = 2280428640. Its totient is φ = 651191192.

The previous prime is 1302742219. The next prime is 1302742237. The reversal of 1302742228 is 8222472031.

It is an interprime number because it is at equal distance from previous prime (1302742219) and next prime (1302742237).

It is a super-2 number, since 2×1302742228² = 3394274625228807968, 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 1302742228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27976 + ... + 58207.

It is an arithmetic number, because the mean of its divisors is an integer number (190035720).

Almost surely, 2^1302742228 is an apocalyptic number.

It is an amenable number.

1302742228 is a deficient number, since it is larger than the sum of its proper divisors (977686412).

1302742228 is a wasteful number, since it uses less digits than its factorization.

1302742228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89966 (or 89964 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 1302742228 is about 36093.5205819549. The cubic root of 1302742228 is about 1092.1597410632.

It can be divided in two parts, 13027 and 42228, that added together give a palindrome (55255).

The spelling of 1302742228 in words is "one billion, three hundred two million, seven hundred forty-two thousand, two hundred twenty-eight".