154840380 has 24 divisors (see below), whose sum is σ = 433553232. Its totient is φ = 41290752.

The previous prime is 154840351. The next prime is 154840391. The reversal of 154840380 is 83048451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290277 + ... + 1290396.

It is an arithmetic number, because the mean of its divisors is an integer number (18064718).

Almost surely, 2^154840380 is an apocalyptic number.

154840380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154840380 is an abundant number, since it is smaller than the sum of its proper divisors (278712852).

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

154840380 is a wasteful number, since it uses less digits than its factorization.

154840380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580685 (or 2580683 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 154840380 is about 12443.4874532825. The cubic root of 154840380 is about 536.9840789540.

The spelling of 154840380 in words is "one hundred fifty-four million, eight hundred forty thousand, three hundred eighty".