154268820 has 96 divisors (see below), whose sum is σ = 500855040. Its totient is φ = 39346560.

The previous prime is 154268813. The next prime is 154268831. The reversal of 154268820 is 28862451.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6210 + ... + 18630.

It is an arithmetic number, because the mean of its divisors is an integer number (5217240).

Almost surely, 2^154268820 is an apocalyptic number.

154268820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 12420×12421.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154268820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250427520).

154268820 is an abundant number, since it is smaller than the sum of its proper divisors (346586220).

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

154268820 is a wasteful number, since it uses less digits than its factorization.

154268820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12462 (or 12454 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 154268820 is about 12420.4999899360. The cubic root of 154268820 is about 536.3225438559.

The spelling of 154268820 in words is "one hundred fifty-four million, two hundred sixty-eight thousand, eight hundred twenty".