1020403434 has 16 divisors (see below), whose sum is σ = 2071267488. Its totient is φ = 335057712.

The previous prime is 1020403429. The next prime is 1020403453. The reversal of 1020403434 is 4343040201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020403434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268757 + ... + 1269560.

It is an arithmetic number, because the mean of its divisors is an integer number (129454218).

Almost surely, 2^1020403434 is an apocalyptic number.

1020403434 is an abundant number, since it is smaller than the sum of its proper divisors (1050864054).

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

1020403434 is a wasteful number, since it uses less digits than its factorization.

1020403434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538389.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1020403434 is about 31943.7542252003. The cubic root of 1020403434 is about 1006.7554063890.

Adding to 1020403434 its reverse (4343040201), we get a palindrome (5363443635).

The spelling of 1020403434 in words is "one billion, twenty million, four hundred three thousand, four hundred thirty-four".