154704420 has 144 divisors (see below), whose sum is σ = 535232880. Its totient is φ = 35831808.

The previous prime is 154704397. The next prime is 154704421. The reversal of 154704420 is 24407451.

154704420 is a `hidden beast` number, since 154 + 70 + 442 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 576 + 154703844 = 24^2 + 12438^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154704421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37836 + ... + 41724.

It is an arithmetic number, because the mean of its divisors is an integer number (3716895).

Almost surely, 2^154704420 is an apocalyptic number.

154704420 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 154704420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267616440).

154704420 is an abundant number, since it is smaller than the sum of its proper divisors (380528460).

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

154704420 is a wasteful number, since it uses less digits than its factorization.

154704420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3934 (or 3929 counting only the distinct ones).

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

The square root of 154704420 is about 12438.0231548265. The cubic root of 154704420 is about 536.8268638604.

The spelling of 154704420 in words is "one hundred fifty-four million, seven hundred four thousand, four hundred twenty".