155406342 has 96 divisors (see below), whose sum is σ = 395412192. Its totient is φ = 40352256.

The previous prime is 155406323. The next prime is 155406373. The reversal of 155406342 is 243604551.

It is a super-2 number, since 2×155406342² = 48302262267641928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278728 + ... + 279284.

It is an arithmetic number, because the mean of its divisors is an integer number (4118877).

Almost surely, 2^155406342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155406342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197706096).

155406342 is an abundant number, since it is smaller than the sum of its proper divisors (240005850).

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

155406342 is a wasteful number, since it uses less digits than its factorization.

155406342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 155406342 is about 12466.2080040404. The cubic root of 155406342 is about 537.6375326443.

The spelling of 155406342 in words is "one hundred fifty-five million, four hundred six thousand, three hundred forty-two".