158427378 has 12 divisors (see below), whose sum is σ = 343259358. Its totient is φ = 52809120.

The previous prime is 158427371. The next prime is 158427421. The reversal of 158427378 is 873724851.

158427378 is a `hidden beast` number, since 158 + 427 + 3 + 78 = 666.

158427378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 150626529 + 7800849 = 12273^2 + 2793^2 .

It is not an unprimeable number, because it can be changed into a prime (158427371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4400743 + ... + 4400778.

Almost surely, 2^158427378 is an apocalyptic number.

158427378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

158427378 is an abundant number, since it is smaller than the sum of its proper divisors (184831980).

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

158427378 is a wasteful number, since it uses less digits than its factorization.

158427378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8801529 (or 8801526 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 158427378 is about 12586.7937934964. The cubic root of 158427378 is about 541.0990168894.

It can be divided in two parts, 15842 and 7378, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 158427378 in words is "one hundred fifty-eight million, four hundred twenty-seven thousand, three hundred seventy-eight".