1023800434 has 8 divisors (see below), whose sum is σ = 1577206188. Its totient is φ = 498065040.

The previous prime is 1023800423. The next prime is 1023800441. The reversal of 1023800434 is 4340083201.

It can be written as a sum of positive squares in 2 ways, for example, as 1023680025 + 120409 = 31995^2 + 347^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1023800399 and 1023800408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6917497 + ... + 6917644.

Almost surely, 2^1023800434 is an apocalyptic number.

1023800434 is a deficient number, since it is larger than the sum of its proper divisors (553405754).

1023800434 is a wasteful number, since it uses less digits than its factorization.

1023800434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13835180.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1023800434 is about 31996.8816293088. The cubic root of 1023800434 is about 1007.8713571711.

Adding to 1023800434 its reverse (4340083201), we get a palindrome (5363883635).

The spelling of 1023800434 in words is "one billion, twenty-three million, eight hundred thousand, four hundred thirty-four".