154299040 has 72 divisors (see below), whose sum is σ = 424068372. Its totient is φ = 52899840.

The previous prime is 154299023. The next prime is 154299043. The reversal of 154299040 is 40992451.

It can be written as a sum of positive squares in 2 ways, for example, as 144288144 + 10010896 = 12012^2 + 3164^2 .

It is a junction number, because it is equal to n+sod(n) for n = 154298987 and 154299005.

It is not an unprimeable number, because it can be changed into a prime (154299043) 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 11 ways as a sum of consecutive naturals, for example, 2001 + ... + 17680.

Almost surely, 2^154299040 is an apocalyptic number.

154299040 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 154299040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212034186).

154299040 is an abundant number, since it is smaller than the sum of its proper divisors (269769332).

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

154299040 is a wasteful number, since it uses less digits than its factorization.

154299040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19710 (or 19695 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 154299040 is about 12421.7164675418. The cubic root of 154299040 is about 536.3575619693.

The spelling of 154299040 in words is "one hundred fifty-four million, two hundred ninety-nine thousand, forty".