36147840 has 128 divisors (see below), whose sum is σ = 117357120. Its totient is φ = 9461760.

The previous prime is 36147817. The next prime is 36147851. The reversal of 36147840 is 4874163.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128500 + ... + 128780.

Almost surely, 2^36147840 is an apocalyptic number.

36147840 is a gapful number since it is divisible by the number (30) 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 36147840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58678560).

36147840 is an abundant number, since it is smaller than the sum of its proper divisors (81209280).

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

36147840 is a wasteful number, since it uses less digits than its factorization.

36147840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 36147840 is about 6012.3073773719. The cubic root of 36147840 is about 330.6441047157.

The spelling of 36147840 in words is "thirty-six million, one hundred forty-seven thousand, eight hundred forty".