158037040 has 80 divisors (see below), whose sum is σ = 429758208. Its totient is φ = 52915968.

The previous prime is 158037017. The next prime is 158037059. The reversal of 158037040 is 40730851.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20799 + ... + 27361.

Almost surely, 2^158037040 is an apocalyptic number.

158037040 is a gapful number since it is divisible by the number (10) 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 158037040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214879104).

158037040 is an abundant number, since it is smaller than the sum of its proper divisors (271721168).

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

158037040 is a wasteful number, since it uses less digits than its factorization.

158037040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6626 (or 6620 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 158037040 is about 12571.2783757262. The cubic root of 158037040 is about 540.6542595678.

Adding to 158037040 its reverse (40730851), we get a palindrome (198767891).

The spelling of 158037040 in words is "one hundred fifty-eight million, thirty-seven thousand, forty".