1020435249 has 8 divisors (see below), whose sum is σ = 1360736352. Its totient is φ = 680212160.

The previous prime is 1020435203. The next prime is 1020435271. The reversal of 1020435249 is 9425340201.

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

It is a cyclic number.

It is not a de Polignac number, because 1020435249 - 2⁷ = 1020435121 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1020435349) 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, 26569 + ... + 52409.

It is an arithmetic number, because the mean of its divisors is an integer number (170092044).

Almost surely, 2^1020435249 is an apocalyptic number.

It is an amenable number.

1020435249 is a deficient number, since it is larger than the sum of its proper divisors (340301103).

1020435249 is a wasteful number, since it uses less digits than its factorization.

1020435249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39007.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1020435249 is about 31944.2522059916. The cubic root of 1020435249 is about 1006.7658694370.

The spelling of 1020435249 in words is "one billion, twenty million, four hundred thirty-five thousand, two hundred forty-nine".