1020340034 has 48 divisors (see below), whose sum is σ = 1929093408. Its totient is φ = 401966208.

The previous prime is 1020340021. The next prime is 1020340039. The reversal of 1020340034 is 4300430201.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 1020339994 and 1020340021.

It is not an unprimeable number, because it can be changed into a prime (1020340039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64517 + ... + 78759.

It is an arithmetic number, because the mean of its divisors is an integer number (40189446).

Almost surely, 2^1020340034 is an apocalyptic number.

1020340034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1020340034 is a deficient number, since it is larger than the sum of its proper divisors (908753374).

1020340034 is a wasteful number, since it uses less digits than its factorization.

1020340034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14319 (or 14312 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1020340034 is about 31942.7618405172. The cubic root of 1020340034 is about 1006.7345552849.

Adding to 1020340034 its reverse (4300430201), we get a palindrome (5320770235).

The spelling of 1020340034 in words is "one billion, twenty million, three hundred forty thousand, thirty-four".