40100544 has 84 divisors (see below), whose sum is σ = 125409960. Its totient is φ = 12149760.

The previous prime is 40100539. The next prime is 40100549. The reversal of 40100544 is 44500104.

It is an interprime number because it is at equal distance from previous prime (40100539) and next prime (40100549).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40100549) 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 11 ways as a sum of consecutive naturals, for example, 3172 + ... + 9500.

Almost surely, 2^40100544 is an apocalyptic number.

40100544 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40100544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62704980).

40100544 is an abundant number, since it is smaller than the sum of its proper divisors (85309416).

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

40100544 is a wasteful number, since it uses less digits than its factorization.

40100544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6358 (or 6345 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40100544 is about 6332.4990327674. The cubic root of 40100544 is about 342.2814959517.

Adding to 40100544 its reverse (44500104), we get a palindrome (84600648).

The spelling of 40100544 in words is "forty million, one hundred thousand, five hundred forty-four".