158004420 has 144 divisors (see below), whose sum is σ = 519095808. Its totient is φ = 35804160.

The previous prime is 158004389. The next prime is 158004421. The reversal of 158004420 is 24400851.

158004420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158004421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 655500 + ... + 655740.

It is an arithmetic number, because the mean of its divisors is an integer number (3604832).

Almost surely, 2^158004420 is an apocalyptic number.

158004420 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 158004420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259547904).

158004420 is an abundant number, since it is smaller than the sum of its proper divisors (361091388).

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

158004420 is a wasteful number, since it uses less digits than its factorization.

158004420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 158004420 is about 12569.9809069067. The cubic root of 158004420 is about 540.6170586781.

The spelling of 158004420 in words is "one hundred fifty-eight million, four thousand, four hundred twenty".