155400342 has 16 divisors (see below), whose sum is σ = 311288832. Its totient is φ = 51718760.

The previous prime is 155400337. The next prime is 155400353. The reversal of 155400342 is 243004551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16134 + ... + 23897.

It is an arithmetic number, because the mean of its divisors is an integer number (19455552).

Almost surely, 2^155400342 is an apocalyptic number.

155400342 is an abundant number, since it is smaller than the sum of its proper divisors (155888490).

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

155400342 is a wasteful number, since it uses less digits than its factorization.

155400342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40683.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 155400342 is about 12465.9673511525. The cubic root of 155400342 is about 537.6306134357.

Adding to 155400342 its reverse (243004551), we get a palindrome (398404893).

The spelling of 155400342 in words is "one hundred fifty-five million, four hundred thousand, three hundred forty-two".