1063872840 has 64 divisors (see below), whose sum is σ = 3277892160. Its totient is φ = 276030720.

The previous prime is 1063872839. The next prime is 1063872841. The reversal of 1063872840 is 482783601.

It is an interprime number because it is at equal distance from previous prime (1063872839) and next prime (1063872841).

It is a super-2 number, since 2×1063872840² = 2263650839379331200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1063872841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115366 + ... + 124245.

It is an arithmetic number, because the mean of its divisors is an integer number (51217065).

Almost surely, 2^1063872840 is an apocalyptic number.

1063872840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1063872840 is an abundant number, since it is smaller than the sum of its proper divisors (2214019320).

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

1063872840 is a wasteful number, since it uses less digits than its factorization.

1063872840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239662 (or 239658 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1063872840 is about 32617.0636323995. The cubic root of 1063872840 is about 1020.8530733413.

The spelling of 1063872840 in words is "one billion, sixty-three million, eight hundred seventy-two thousand, eight hundred forty".