16155420 has 24 divisors (see below), whose sum is σ = 45235344. Its totient is φ = 4308096.

The previous prime is 16155409. The next prime is 16155431. The reversal of 16155420 is 2455161.

16155420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16155409) and next prime (16155431).

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, 134569 + ... + 134688.

It is an arithmetic number, because the mean of its divisors is an integer number (1884806).

Almost surely, 2^16155420 is an apocalyptic number.

16155420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16155420 is an abundant number, since it is smaller than the sum of its proper divisors (29079924).

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

16155420 is a wasteful number, since it uses less digits than its factorization.

16155420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269269 (or 269267 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 16155420 is about 4019.3805492887. The cubic root of 16155420 is about 252.7974861885.

The spelling of 16155420 in words is "sixteen million, one hundred fifty-five thousand, four hundred twenty".