4000161450 has 48 divisors (see below), whose sum is σ = 9955809216. Its totient is φ = 1062902400.

The previous prime is 4000161439. The next prime is 4000161479. The reversal of 4000161450 is 541610004.

It is a super-2 number, since 2×4000161450² = 32002583252132205000, which contains 22 as substring.

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, 5302 + ... + 89601.

It is an arithmetic number, because the mean of its divisors is an integer number (207412692).

Almost surely, 2^4000161450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4000161450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4977904608).

4000161450 is an abundant number, since it is smaller than the sum of its proper divisors (5955647766).

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

4000161450 is a wasteful number, since it uses less digits than its factorization.

4000161450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95199 (or 95194 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 4000161450 is about 63246.8295648090. The cubic root of 4000161450 is about 1587.4224088392.

Adding to 4000161450 its reverse (541610004), we get a palindrome (4541771454).

The spelling of 4000161450 in words is "four billion, one hundred sixty-one thousand, four hundred fifty".