1025663434 has 32 divisors (see below), whose sum is σ = 1685376000. Its totient is φ = 466455024.

The previous prime is 1025663417. The next prime is 1025663461. The reversal of 1025663434 is 4343665201.

It is a self number, because there is not a number n which added to its sum of digits gives 1025663434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91087 + ... + 101725.

It is an arithmetic number, because the mean of its divisors is an integer number (52668000).

Almost surely, 2^1025663434 is an apocalyptic number.

1025663434 is a deficient number, since it is larger than the sum of its proper divisors (659712566).

1025663434 is a wasteful number, since it uses less digits than its factorization.

1025663434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10762.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 1025663434 is about 32025.9806094989. The cubic root of 1025663434 is about 1008.4823247332.

The spelling of 1025663434 in words is "one billion, twenty-five million, six hundred sixty-three thousand, four hundred thirty-four".