155385426 has 32 divisors (see below), whose sum is σ = 355645440. Its totient is φ = 44336016.

The previous prime is 155385383. The next prime is 155385427. The reversal of 155385426 is 624583551.

155385426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155385426² = 48289261226402952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155385427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36055 + ... + 40133.

It is an arithmetic number, because the mean of its divisors is an integer number (11113920).

Almost surely, 2^155385426 is an apocalyptic number.

155385426 is an abundant number, since it is smaller than the sum of its proper divisors (200260014).

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

155385426 is a wasteful number, since it uses less digits than its factorization.

155385426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4998.

The product of its digits is 144000, while the sum is 39.

The square root of 155385426 is about 12465.3690679418. The cubic root of 155385426 is about 537.6134115113.

The spelling of 155385426 in words is "one hundred fifty-five million, three hundred eighty-five thousand, four hundred twenty-six".