36720450 has 72 divisors (see below), whose sum is σ = 106261428. Its totient is φ = 9037440.

The previous prime is 36720449. The next prime is 36720451. The reversal of 36720450 is 5402763.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (36720449) and next prime (36720451).

It can be written as a sum of positive squares in 6 ways, for example, as 17614809 + 19105641 = 4197^2 + 4371^2 .

It is not an unprimeable number, because it can be changed into a prime (36720451) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2712 + ... + 8988.

Almost surely, 2^36720450 is an apocalyptic number.

36720450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 36720450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53130714).

36720450 is an abundant number, since it is smaller than the sum of its proper divisors (69540978).

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

36720450 is a wasteful number, since it uses less digits than its factorization.

36720450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6308 (or 6300 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 36720450 is about 6059.7400934364. The cubic root of 36720450 is about 332.3808531591.

The spelling of 36720450 in words is "thirty-six million, seven hundred twenty thousand, four hundred fifty".