158490434 has 8 divisors (see below), whose sum is σ = 240186828. Its totient is φ = 78428160.

The previous prime is 158490421. The next prime is 158490467. The reversal of 158490434 is 434094851.

158490434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 149206225 + 9284209 = 12215^2 + 3047^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408287 + ... + 408674.

Almost surely, 2^158490434 is an apocalyptic number.

158490434 is a deficient number, since it is larger than the sum of its proper divisors (81696394).

158490434 is an equidigital number, since it uses as much as digits as its factorization.

158490434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817060.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 158490434 is about 12589.2983918882. The cubic root of 158490434 is about 541.1707953374.

The spelling of 158490434 in words is "one hundred fifty-eight million, four hundred ninety thousand, four hundred thirty-four".