1020631704 has 16 divisors (see below), whose sum is σ = 2551579320. Its totient is φ = 340210560.

The previous prime is 1020631699. The next prime is 1020631709. The reversal of 1020631704 is 4071360201.

It is an interprime number because it is at equal distance from previous prime (1020631699) and next prime (1020631709).

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 42526321 = 1020631704 / (1 + 0 + 2 + 0 + 6 + 3 + 1 + 7 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020631709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21263137 + ... + 21263184.

Almost surely, 2^1020631704 is an apocalyptic number.

It is an amenable number.

1020631704 is an abundant number, since it is smaller than the sum of its proper divisors (1530947616).

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

1020631704 is a wasteful number, since it uses less digits than its factorization.

1020631704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42526330 (or 42526326 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1020631704 is about 31947.3270243380. The cubic root of 1020631704 is about 1006.8304730781.

Adding to 1020631704 its reverse (4071360201), we get a palindrome (5091991905).

The spelling of 1020631704 in words is "one billion, twenty million, six hundred thirty-one thousand, seven hundred four".