1042879500 has 144 divisors (see below), whose sum is σ = 3543208032. Its totient is φ = 256694400.

The previous prime is 1042879499. The next prime is 1042879531. The reversal of 1042879500 is 59782401.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49587 + ... + 67413.

Almost surely, 2^1042879500 is an apocalyptic number.

1042879500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042879500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1771604016).

1042879500 is an abundant number, since it is smaller than the sum of its proper divisors (2500328532).

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

1042879500 is a wasteful number, since it uses less digits than its factorization.

1042879500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17865 (or 17850 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1042879500 is about 32293.6448856427. The cubic root of 1042879500 is about 1014.0936038609.

The spelling of 1042879500 in words is "one billion, forty-two million, eight hundred seventy-nine thousand, five hundred".