154998240 has 96 divisors (see below), whose sum is σ = 493426080. Its totient is φ = 40894464.

The previous prime is 154998161. The next prime is 154998241. The reversal of 154998240 is 42899451.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 154998192 and 154998201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154998241) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 44896 + ... + 48224.

It is an arithmetic number, because the mean of its divisors is an integer number (5139855).

Almost surely, 2^154998240 is an apocalyptic number.

154998240 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 154998240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246713040).

154998240 is an abundant number, since it is smaller than the sum of its proper divisors (338427840).

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

154998240 is a wasteful number, since it uses less digits than its factorization.

154998240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444 (or 3436 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 154998240 is about 12449.8289144871. The cubic root of 154998240 is about 537.1665023328.

The spelling of 154998240 in words is "one hundred fifty-four million, nine hundred ninety-eight thousand, two hundred forty".