40213124 has 36 divisors (see below), whose sum is σ = 82353600. Its totient is φ = 17130960.

The previous prime is 40213093. The next prime is 40213171. The reversal of 40213124 is 42131204.

It is a nialpdrome in base 7.

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 11 ways as a sum of consecutive naturals, for example, 38489 + ... + 39519.

It is an arithmetic number, because the mean of its divisors is an integer number (2287600).

Almost surely, 2^40213124 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 40213124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41176800).

40213124 is an abundant number, since it is smaller than the sum of its proper divisors (42140476).

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

40213124 is a wasteful number, since it uses less digits than its factorization.

40213124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40213124 is about 6341.3818683312. The cubic root of 40213124 is about 342.6015086198.

Adding to 40213124 its reverse (42131204), we get a palindrome (82344328).

The spelling of 40213124 in words is "forty million, two hundred thirteen thousand, one hundred twenty-four".