158347420 has 144 divisors (see below), whose sum is σ = 434482272. Its totient is φ = 47900160.

The previous prime is 158347381. The next prime is 158347451. The reversal of 158347420 is 24743851.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 398662 + ... + 399058.

It is an arithmetic number, because the mean of its divisors is an integer number (3017238).

Almost surely, 2^158347420 is an apocalyptic number.

158347420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158347420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217241136).

158347420 is an abundant number, since it is smaller than the sum of its proper divisors (276134852).

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

158347420 is a wasteful number, since it uses less digits than its factorization.

158347420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 158347420 is about 12583.6171270426. The cubic root of 158347420 is about 541.0079710184.

The spelling of 158347420 in words is "one hundred fifty-eight million, three hundred forty-seven thousand, four hundred twenty".