155927420 has 48 divisors (see below), whose sum is σ = 359856000. Its totient is φ = 56281920.

The previous prime is 155927413. The next prime is 155927423. The reversal of 155927420 is 24729551.

155927420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155927423) 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, 28031 + ... + 33129.

It is an arithmetic number, because the mean of its divisors is an integer number (7497000).

Almost surely, 2^155927420 is an apocalyptic number.

155927420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155927420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179928000).

155927420 is an abundant number, since it is smaller than the sum of its proper divisors (203928580).

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

155927420 is a wasteful number, since it uses less digits than its factorization.

155927420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5258 (or 5256 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 155927420 is about 12487.0901334138. The cubic root of 155927420 is about 538.2377624521.

The spelling of 155927420 in words is "one hundred fifty-five million, nine hundred twenty-seven thousand, four hundred twenty".