158434004 has 24 divisors (see below), whose sum is σ = 284657856. Its totient is φ = 77112000.

The previous prime is 158433983. The next prime is 158434009. The reversal of 158434004 is 400434851.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158434009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102719 + ... + 104249.

It is an arithmetic number, because the mean of its divisors is an integer number (11860744).

Almost surely, 2^158434004 is an apocalyptic number.

It is an amenable number.

158434004 is a deficient number, since it is larger than the sum of its proper divisors (126223852).

158434004 is a wasteful number, since it uses less digits than its factorization.

158434004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207 (or 2205 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 158434004 is about 12587.0570031283. The cubic root of 158434004 is about 541.1065603501.

Adding to 158434004 its reverse (400434851), we get a palindrome (558868855).

The spelling of 158434004 in words is "one hundred fifty-eight million, four hundred thirty-four thousand, four".