155682240 has 112 divisors (see below), whose sum is σ = 564928512. Its totient is φ = 35582976.

The previous prime is 155682227. The next prime is 155682281. The reversal of 155682240 is 42286551.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4864 + ... + 18303.

Almost surely, 2^155682240 is an apocalyptic number.

155682240 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 155682240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282464256).

155682240 is an abundant number, since it is smaller than the sum of its proper divisors (409246272).

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

155682240 is a wasteful number, since it uses less digits than its factorization.

155682240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23194 (or 23184 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 155682240 is about 12477.2689319418. The cubic root of 155682240 is about 537.9555064248.

The spelling of 155682240 in words is "one hundred fifty-five million, six hundred eighty-two thousand, two hundred forty".