40211000 has 64 divisors (see below), whose sum is σ = 95472000. Its totient is φ = 15849600.

The previous prime is 40210981. The next prime is 40211009. The reversal of 40211000 is 11204.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40211009) 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 15 ways as a sum of consecutive naturals, for example, 78746 + ... + 79254.

It is an arithmetic number, because the mean of its divisors is an integer number (1491750).

Almost surely, 2^40211000 is an apocalyptic number.

40211000 is a gapful number since it is divisible by the number (40) 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 40211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47736000).

40211000 is an abundant number, since it is smaller than the sum of its proper divisors (55261000).

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

40211000 is a wasteful number, since it uses less digits than its factorization.

40211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 40211000 is about 6341.2143947354. The cubic root of 40211000 is about 342.5954766055.

Adding to 40211000 its reverse (11204), we get a palindrome (40222204).

The spelling of 40211000 in words is "forty million, two hundred eleven thousand".