3567997440 has 240 divisors, whose sum is σ = 14122899648. Its totient is φ = 815505408.

The previous prime is 3567997373. The next prime is 3567997453. The reversal of 3567997440 is 447997653.

It is a happy number.

3567997440 is a `hidden beast` number, since 3 + 567 + 9 + 9 + 74 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150219 + ... + 172341.

Almost surely, 2^3567997440 is an apocalyptic number.

3567997440 is a gapful number since it is divisible by the number (30) 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 3567997440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7061449824).

3567997440 is an abundant number, since it is smaller than the sum of its proper divisors (10554902208).

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

3567997440 is a wasteful number, since it uses less digits than its factorization.

3567997440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22159 (or 22140 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The square root of 3567997440 is about 59732.7166634835. The cubic root of 3567997440 is about 1528.0638844666.

The spelling of 3567997440 in words is "three billion, five hundred sixty-seven million, nine hundred ninety-seven thousand, four hundred forty".