1310628 has 24 divisors (see below), whose sum is σ = 3336480. Its totient is φ = 397120.

The previous prime is 1310627. The next prime is 1310629. The reversal of 1310628 is 8260131.

It is an interprime number because it is at equal distance from previous prime (1310627) and next prime (1310629).

It is not an unprimeable number, because it can be changed into a prime (1310627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4833 + ... + 5096.

It is an arithmetic number, because the mean of its divisors is an integer number (139020).

2^1310628 is an apocalyptic number.

It is an amenable number.

1310628 is an abundant number, since it is smaller than the sum of its proper divisors (2025852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1310628 is a wasteful number, since it uses less digits than its factorization.

1310628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9947 (or 9945 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1310628 is about 1144.8266244283. The cubic root of 1310628 is about 109.4359000165.

Adding to 1310628 its reverse (8260131), we get a palindrome (9570759).

The spelling of 1310628 in words is "one million, three hundred ten thousand, six hundred twenty-eight".