40533616 has 40 divisors (see below), whose sum is σ = 82280448. Its totient is φ = 19320000.

The previous prime is 40533587. The next prime is 40533617. The reversal of 40533616 is 61633504.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40533617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34641 + ... + 35791.

Almost surely, 2^40533616 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 40533616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41140224).

40533616 is an abundant number, since it is smaller than the sum of its proper divisors (41746832).

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

40533616 is a wasteful number, since it uses less digits than its factorization.

40533616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261 (or 1255 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 40533616 is about 6366.6016052522. The cubic root of 40533616 is about 343.5092605987.

The spelling of 40533616 in words is "forty million, five hundred thirty-three thousand, six hundred sixteen".