36216440 has 64 divisors (see below), whose sum is σ = 88421760. Its totient is φ = 13271040.

The previous prime is 36216373. The next prime is 36216457. The reversal of 36216440 is 4461263.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

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, 133505 + ... + 133775.

It is an arithmetic number, because the mean of its divisors is an integer number (1381590).

Almost surely, 2^36216440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36216440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44210880).

36216440 is an abundant number, since it is smaller than the sum of its proper divisors (52205320).

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

36216440 is a wasteful number, since it uses less digits than its factorization.

36216440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 36216440 is about 6018.0096377457. The cubic root of 36216440 is about 330.8531338234.

The spelling of 36216440 in words is "thirty-six million, two hundred sixteen thousand, four hundred forty".