40993704 has 72 divisors (see below), whose sum is σ = 115154910. Its totient is φ = 13173888.

The previous prime is 40993651. The next prime is 40993709. The reversal of 40993704 is 40739904.

It can be written as a sum of positive squares in 3 ways, for example, as 40985604 + 8100 = 6402^2 + 90^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (40993709) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 60214 + ... + 60890.

Almost surely, 2^40993704 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 40993704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57577455).

40993704 is an abundant number, since it is smaller than the sum of its proper divisors (74161206).

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

40993704 is a wasteful number, since it uses less digits than its factorization.

40993704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 40993704 is about 6402.6325835550. The cubic root of 40993704 is about 344.8040727479.

The spelling of 40993704 in words is "forty million, nine hundred ninety-three thousand, seven hundred four".