1042180640 has 96 divisors (see below), whose sum is σ = 2555400960. Its totient is φ = 401356800.

The previous prime is 1042180639. The next prime is 1042180687. The reversal of 1042180640 is 460812401.

It is a super-2 number, since 2×1042180640² = 2172280972781619200, which contains 22 as substring.

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, 517235 + ... + 519245.

It is an arithmetic number, because the mean of its divisors is an integer number (26618760).

Almost surely, 2^1042180640 is an apocalyptic number.

1042180640 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 1042180640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1277700480).

1042180640 is an abundant number, since it is smaller than the sum of its proper divisors (1513220320).

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

1042180640 is a wasteful number, since it uses less digits than its factorization.

1042180640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146 (or 2138 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1042180640 is about 32282.8226770832. The cubic root of 1042180640 is about 1013.8670299621.

The spelling of 1042180640 in words is "one billion, forty-two million, one hundred eighty thousand, six hundred forty".