154487880 has 192 divisors, whose sum is σ = 527155200. Its totient is φ = 39191040.

The previous prime is 154487869. The next prime is 154487881. The reversal of 154487880 is 88784451.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154487881) 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, 1216377 + ... + 1216503.

It is an arithmetic number, because the mean of its divisors is an integer number (2745600).

Almost surely, 2^154487880 is an apocalyptic number.

154487880 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 154487880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263577600).

154487880 is an abundant number, since it is smaller than the sum of its proper divisors (372667320).

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

154487880 is a wasteful number, since it uses less digits than its factorization.

154487880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The square root of 154487880 is about 12429.3153471943. The cubic root of 154487880 is about 536.5762811316.

The spelling of 154487880 in words is "one hundred fifty-four million, four hundred eighty-seven thousand, eight hundred eighty".