123854420 has 24 divisors (see below), whose sum is σ = 260410248. Its totient is φ = 49481600.

The previous prime is 123854417. The next prime is 123854431. The reversal of 123854420 is 24458321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7300804 + 116553616 = 2702^2 + 10796^2 .

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, 15530 + ... + 22110.

It is an arithmetic number, because the mean of its divisors is an integer number (10850427).

Almost surely, 2^123854420 is an apocalyptic number.

123854420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123854420 is an abundant number, since it is smaller than the sum of its proper divisors (136555828).

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

123854420 is a wasteful number, since it uses less digits than its factorization.

123854420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7531 (or 7529 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 123854420 is about 11128.9900709813. The cubic root of 123854420 is about 498.4678699504.

The spelling of 123854420 in words is "one hundred twenty-three million, eight hundred fifty-four thousand, four hundred twenty".