40213750 has 40 divisors (see below), whose sum is σ = 76925376. Its totient is φ = 15756000.

The previous prime is 40213681. The next prime is 40213753. The reversal of 40213750 is 5731204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40213753) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65947 + ... + 66553.

Almost surely, 2^40213750 is an apocalyptic number.

40213750 is a deficient number, since it is larger than the sum of its proper divisors (36711626).

40213750 is an equidigital number, since it uses as much as digits as its factorization.

40213750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 40213750 is about 6341.4312264662. The cubic root of 40213750 is about 342.6032863763.

Adding to 40213750 its reverse (5731204), we get a palindrome (45944954).

The spelling of 40213750 in words is "forty million, two hundred thirteen thousand, seven hundred fifty".