1042045998 has 64 divisors (see below), whose sum is σ = 2430881280. Its totient is φ = 291658752.

The previous prime is 1042045973. The next prime is 1042046039. The reversal of 1042045998 is 8995402401.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421161 + ... + 423627.

It is an arithmetic number, because the mean of its divisors is an integer number (37982520).

Almost surely, 2^1042045998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042045998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1215440640).

1042045998 is an abundant number, since it is smaller than the sum of its proper divisors (1388835282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1042045998 is a wasteful number, since it uses less digits than its factorization.

1042045998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 1042045998 is about 32280.7372592387. The cubic root of 1042045998 is about 1013.8233667178.

The spelling of 1042045998 in words is "one billion, forty-two million, forty-five thousand, nine hundred ninety-eight".