154642020 has 48 divisors (see below), whose sum is σ = 466307520. Its totient is φ = 38065536.

The previous prime is 154642001. The next prime is 154642027. The reversal of 154642020 is 20246451.

154642020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (154642027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98350 + ... + 99909.

It is an arithmetic number, because the mean of its divisors is an integer number (9714740).

Almost surely, 2^154642020 is an apocalyptic number.

154642020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154642020 is an abundant number, since it is smaller than the sum of its proper divisors (311665500).

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

154642020 is a wasteful number, since it uses less digits than its factorization.

154642020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198284 (or 198282 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 154642020 is about 12435.5144646291. The cubic root of 154642020 is about 536.7546778144.

Adding to 154642020 its reverse (20246451), we get a palindrome (174888471).

The spelling of 154642020 in words is "one hundred fifty-four million, six hundred forty-two thousand, twenty".