40651216 has 40 divisors (see below), whose sum is σ = 84262464. Its totient is φ = 18931200.

The previous prime is 40651183. The next prime is 40651229. The reversal of 40651216 is 61215604.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27291 + ... + 28741.

Almost surely, 2^40651216 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 40651216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42131232).

40651216 is an abundant number, since it is smaller than the sum of its proper divisors (43611248).

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

40651216 is a wasteful number, since it uses less digits than its factorization.

40651216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579 (or 1573 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 40651216 is about 6375.8306125555. The cubic root of 40651216 is about 343.8411471355.

The spelling of 40651216 in words is "forty million, six hundred fifty-one thousand, two hundred sixteen".