155827420 has 48 divisors (see below), whose sum is σ = 381060288. Its totient is φ = 52416000.

The previous prime is 155827337. The next prime is 155827433. The reversal of 155827420 is 24728551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3081 + ... + 17920.

It is an arithmetic number, because the mean of its divisors is an integer number (7938756).

Almost surely, 2^155827420 is an apocalyptic number.

155827420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155827420 is an abundant number, since it is smaller than the sum of its proper divisors (225232868).

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

155827420 is a wasteful number, since it uses less digits than its factorization.

155827420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21070 (or 21068 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 155827420 is about 12483.0853557925. The cubic root of 155827420 is about 538.1226762440.

The spelling of 155827420 in words is "one hundred fifty-five million, eight hundred twenty-seven thousand, four hundred twenty".