154450420 has 24 divisors (see below), whose sum is σ = 326529000. Its totient is φ = 61364352.

The previous prime is 154450409. The next prime is 154450447. The reversal of 154450420 is 24054451.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44944 + 154405476 = 212^2 + 12426^2 .

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, 22935 + ... + 28894.

It is an arithmetic number, because the mean of its divisors is an integer number (13605375).

Almost surely, 2^154450420 is an apocalyptic number.

154450420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154450420 is an abundant number, since it is smaller than the sum of its proper divisors (172078580).

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

154450420 is a wasteful number, since it uses less digits than its factorization.

154450420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51987 (or 51985 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 154450420 is about 12427.8083345375. The cubic root of 154450420 is about 536.5329082095.

The spelling of 154450420 in words is "one hundred fifty-four million, four hundred fifty thousand, four hundred twenty".