154049472 has 112 divisors (see below), whose sum is σ = 460857600. Its totient is φ = 50446080.

The previous prime is 154049471. The next prime is 154049527. The reversal of 154049472 is 274940451.

It is a happy number.

154049472 is a `hidden beast` number, since 1 + 540 + 49 + 4 + 72 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154049471) 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, 101197 + ... + 102707.

It is an arithmetic number, because the mean of its divisors is an integer number (4114800).

Almost surely, 2^154049472 is an apocalyptic number.

154049472 is a gapful number since it is divisible by the number (12) 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 154049472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230428800).

154049472 is an abundant number, since it is smaller than the sum of its proper divisors (306808128).

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

154049472 is a wasteful number, since it uses less digits than its factorization.

154049472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1575 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 154049472 is about 12411.6667696164. Note that the first 3 decimals coincide. The cubic root of 154049472 is about 536.0682321989.

The spelling of 154049472 in words is "one hundred fifty-four million, forty-nine thousand, four hundred seventy-two".