155552340 has 24 divisors (see below), whose sum is σ = 435546720. Its totient is φ = 41480608.

The previous prime is 155552333. The next prime is 155552357. The reversal of 155552340 is 43255551.

It is a happy number.

155552340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 155552298 and 155552307.

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 7 ways as a sum of consecutive naturals, for example, 1296210 + ... + 1296329.

It is an arithmetic number, because the mean of its divisors is an integer number (18147780).

Almost surely, 2^155552340 is an apocalyptic number.

155552340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155552340 is an abundant number, since it is smaller than the sum of its proper divisors (279994380).

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

155552340 is a wasteful number, since it uses less digits than its factorization.

155552340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592551 (or 2592549 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 155552340 is about 12472.0623795746. The cubic root of 155552340 is about 537.8058428854.

The spelling of 155552340 in words is "one hundred fifty-five million, five hundred fifty-two thousand, three hundred forty".