36351978 has 48 divisors (see below), whose sum is σ = 82698336. Its totient is φ = 10588320.

The previous prime is 36351949. The next prime is 36352003. The reversal of 36351978 is 87915363.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27513 + ... + 28803.

It is an arithmetic number, because the mean of its divisors is an integer number (1722882).

Almost surely, 2^36351978 is an apocalyptic number.

36351978 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 36351978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41349168).

36351978 is an abundant number, since it is smaller than the sum of its proper divisors (46346358).

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

36351978 is a wasteful number, since it uses less digits than its factorization.

36351978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347 (or 1328 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 36351978 is about 6029.2601536175. The cubic root of 36351978 is about 331.2653531272.

The spelling of 36351978 in words is "thirty-six million, three hundred fifty-one thousand, nine hundred seventy-eight".