72044154 has 128 divisors (see below), whose sum is σ = 200578560. Its totient is φ = 18895680.

The previous prime is 72044153. The next prime is 72044171. The reversal of 72044154 is 45144027.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72044153) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 397944 + ... + 398124.

It is an arithmetic number, because the mean of its divisors is an integer number (1567020).

Almost surely, 2^72044154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72044154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100289280).

72044154 is an abundant number, since it is smaller than the sum of its proper divisors (128534406).

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

72044154 is a wasteful number, since it uses less digits than its factorization.

72044154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 72044154 is about 8487.8827748738. The cubic root of 72044154 is about 416.1017879929.

The spelling of 72044154 in words is "seventy-two million, forty-four thousand, one hundred fifty-four".