155340342 has 40 divisors (see below), whose sum is σ = 348912696. Its totient is φ = 51655968.

The previous prime is 155340337. The next prime is 155340347. The reversal of 155340342 is 243043551.

It is an interprime number because it is at equal distance from previous prime (155340337) and next prime (155340347).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155340347) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 87738 + ... + 89490.

Almost surely, 2^155340342 is an apocalyptic number.

155340342 is an abundant number, since it is smaller than the sum of its proper divisors (193572354).

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

155340342 is a wasteful number, since it uses less digits than its factorization.

155340342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314 (or 2305 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 155340342 is about 12463.5605667081. The cubic root of 155340342 is about 537.5614115518.

Adding to 155340342 its reverse (243043551), we get a palindrome (398383893).

The spelling of 155340342 in words is "one hundred fifty-five million, three hundred forty thousand, three hundred forty-two".