1020634694 has 16 divisors (see below), whose sum is σ = 1560592656. Its totient is φ = 500532000.

The previous prime is 1020634663. The next prime is 1020634697. The reversal of 1020634694 is 4964360201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020634697) 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, 1997 + ... + 45224.

It is an arithmetic number, because the mean of its divisors is an integer number (97537041).

Almost surely, 2^1020634694 is an apocalyptic number.

1020634694 is a deficient number, since it is larger than the sum of its proper divisors (539957962).

1020634694 is a wasteful number, since it uses less digits than its factorization.

1020634694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47431.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1020634694 is about 31947.3738200810. The cubic root of 1020634694 is about 1006.8314562667.

Adding to 1020634694 its reverse (4964360201), we get a palindrome (5984994895).

The spelling of 1020634694 in words is "one billion, twenty million, six hundred thirty-four thousand, six hundred ninety-four".