40349544 has 64 divisors (see below), whose sum is σ = 106928640. Its totient is φ = 12661440.

The previous prime is 40349539. The next prime is 40349549. The reversal of 40349544 is 44594304.

It is an interprime number because it is at equal distance from previous prime (40349539) and next prime (40349549).

It is not an unprimeable number, because it can be changed into a prime (40349549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36439 + ... + 37529.

It is an arithmetic number, because the mean of its divisors is an integer number (1670760).

Almost surely, 2^40349544 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 40349544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53464320).

40349544 is an abundant number, since it is smaller than the sum of its proper divisors (66579096).

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

40349544 is a wasteful number, since it uses less digits than its factorization.

40349544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1186 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 40349544 is about 6352.1290918872. The cubic root of 40349544 is about 342.9884879702.

The spelling of 40349544 in words is "forty million, three hundred forty-nine thousand, five hundred forty-four".