158477840 has 40 divisors (see below), whose sum is σ = 369773208. Its totient is φ = 63165440.

The previous prime is 158477831. The next prime is 158477863. The reversal of 158477840 is 48774851.

It can be written as a sum of positive squares in 4 ways, for example, as 74718736 + 83759104 = 8644^2 + 9152^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 158477791 and 158477800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20060 + ... + 26820.

Almost surely, 2^158477840 is an apocalyptic number.

158477840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158477840 is an abundant number, since it is smaller than the sum of its proper divisors (211295368).

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

158477840 is a wasteful number, since it uses less digits than its factorization.

158477840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7067 (or 7061 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 44.

The square root of 158477840 is about 12588.7981952210. The cubic root of 158477840 is about 541.1564607487.

The spelling of 158477840 in words is "one hundred fifty-eight million, four hundred seventy-seven thousand, eight hundred forty".