1063890240 has 224 divisors, whose sum is σ = 3985711104. Its totient is φ = 235284480.

The previous prime is 1063890239. The next prime is 1063890241. The reversal of 1063890240 is 420983601.

It is an interprime number because it is at equal distance from previous prime (1063890239) and next prime (1063890241).

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×1063890240² = 2263724885534515200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1063890241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205767 + ... + 210873.

Almost surely, 2^1063890240 is an apocalyptic number.

1063890240 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 1063890240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1992855552).

1063890240 is an abundant number, since it is smaller than the sum of its proper divisors (2921820864).

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

1063890240 is a wasteful number, since it uses less digits than its factorization.

1063890240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5165 (or 5155 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1063890240 is about 32617.3303628608. The cubic root of 1063890240 is about 1020.8586387767.

The spelling of 1063890240 in words is "one billion, sixty-three million, eight hundred ninety thousand, two hundred forty".