1045243898 has 16 divisors (see below), whose sum is σ = 1584636480. Its totient is φ = 517048896.

The previous prime is 1045243883. The next prime is 1045243907. The reversal of 1045243898 is 8983425401.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128723 + ... + 136601.

It is an arithmetic number, because the mean of its divisors is an integer number (99039780).

Almost surely, 2^1045243898 is an apocalyptic number.

1045243898 is a deficient number, since it is larger than the sum of its proper divisors (539392582).

1045243898 is a wasteful number, since it uses less digits than its factorization.

1045243898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8581.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 1045243898 is about 32330.2319509155. The cubic root of 1045243898 is about 1014.8594037909.

The spelling of 1045243898 in words is "one billion, forty-five million, two hundred forty-three thousand, eight hundred ninety-eight".