1023949435 has 4 divisors (see below), whose sum is σ = 1228739328. Its totient is φ = 819159544.

The previous prime is 1023949427. The next prime is 1023949469. The reversal of 1023949435 is 5349493201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1023949435 - 2³ = 1023949427 is a prime.

It is a Duffinian number.

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, 102394939 + ... + 102394948.

It is an arithmetic number, because the mean of its divisors is an integer number (307184832).

Almost surely, 2^1023949435 is an apocalyptic number.

1023949435 is a deficient number, since it is larger than the sum of its proper divisors (204789893).

1023949435 is an equidigital number, since it uses as much as digits as its factorization.

1023949435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204789892.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 1023949435 is about 31999.2099121213. The cubic root of 1023949435 is about 1007.9202490418.

The spelling of 1023949435 in words is "one billion, twenty-three million, nine hundred forty-nine thousand, four hundred thirty-five".