158494698 has 64 divisors (see below), whose sum is σ = 363916800. Its totient is φ = 51105600.

The previous prime is 158494667. The next prime is 158494741. The reversal of 158494698 is 896494851.

It is a super-2 number, since 2×158494698² = 50241138588222408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225748 + ... + 226448.

It is an arithmetic number, because the mean of its divisors is an integer number (5686200).

Almost surely, 2^158494698 is an apocalyptic number.

158494698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 158494698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181958400).

158494698 is an abundant number, since it is smaller than the sum of its proper divisors (205422102).

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

158494698 is a wasteful number, since it uses less digits than its factorization.

158494698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 838 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 158494698 is about 12589.4677409333. The cubic root of 158494698 is about 541.1756484832.

The spelling of 158494698 in words is "one hundred fifty-eight million, four hundred ninety-four thousand, six hundred ninety-eight".