158443452 has 60 divisors (see below), whose sum is σ = 417476136. Its totient is φ = 52397280.

The previous prime is 158443429. The next prime is 158443457. The reversal of 158443452 is 254344851.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158443457) 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, 40578 + ... + 44310.

Almost surely, 2^158443452 is an apocalyptic number.

158443452 is a gapful number since it is divisible by the number (12) 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 158443452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208738068).

158443452 is an abundant number, since it is smaller than the sum of its proper divisors (259032684).

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

158443452 is a wasteful number, since it uses less digits than its factorization.

158443452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880 (or 3869 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 158443452 is about 12587.4323036909. The cubic root of 158443452 is about 541.1173161917.

The spelling of 158443452 in words is "one hundred fifty-eight million, four hundred forty-three thousand, four hundred fifty-two".