1025018434 has 32 divisors (see below), whose sum is σ = 1817297856. Its totient is φ = 428305920.

The previous prime is 1025018389. The next prime is 1025018447. The reversal of 1025018434 is 4348105201.

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, 15787 + ... + 47950.

It is an arithmetic number, because the mean of its divisors is an integer number (56790558).

Almost surely, 2^1025018434 is an apocalyptic number.

1025018434 is a deficient number, since it is larger than the sum of its proper divisors (792279422).

1025018434 is a wasteful number, since it uses less digits than its factorization.

1025018434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63810.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1025018434 is about 32015.9090765825. The cubic root of 1025018434 is about 1008.2708819156.

The spelling of 1025018434 in words is "one billion, twenty-five million, eighteen thousand, four hundred thirty-four".