158398464 has 192 divisors, whose sum is σ = 503193600. Its totient is φ = 43352064.

The previous prime is 158398463. The next prime is 158398481. The reversal of 158398464 is 464893851.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158398463) 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, 1247169 + ... + 1247295.

It is an arithmetic number, because the mean of its divisors is an integer number (2620800).

Almost surely, 2^158398464 is an apocalyptic number.

158398464 is a gapful number since it is divisible by the number (14) 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 158398464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251596800).

158398464 is an abundant number, since it is smaller than the sum of its proper divisors (344795136).

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

158398464 is a wasteful number, since it uses less digits than its factorization.

158398464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 168 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 158398464 is about 12585.6451562882. The cubic root of 158398464 is about 541.0660968872.

The spelling of 158398464 in words is "one hundred fifty-eight million, three hundred ninety-eight thousand, four hundred sixty-four".