4431020154 has 64 divisors (see below), whose sum is σ = 9993203712. Its totient is φ = 1297641600.

The previous prime is 4431020119. The next prime is 4431020161. The reversal of 4431020154 is 4510201344.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2673294 + ... + 2674950.

It is an arithmetic number, because the mean of its divisors is an integer number (156143808).

Almost surely, 2^4431020154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4431020154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4996601856).

4431020154 is an abundant number, since it is smaller than the sum of its proper divisors (5562183558).

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

4431020154 is a wasteful number, since it uses less digits than its factorization.

4431020154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 4431020154 is about 66565.9083465403. The cubic root of 4431020154 is about 1642.4843560756.

Adding to 4431020154 its reverse (4510201344), we get a palindrome (8941221498).

The spelling of 4431020154 in words is "four billion, four hundred thirty-one million, twenty thousand, one hundred fifty-four".