40221950 has 24 divisors (see below), whose sum is σ = 75276432. Its totient is φ = 15989120.

The previous prime is 40221947. The next prime is 40221953. The reversal of 40221950 is 5912204.

40221950 = 695² + 696² + ... + 769².

It is an interprime number because it is at equal distance from previous prime (40221947) and next prime (40221953).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5942 + ... + 10758.

It is an arithmetic number, because the mean of its divisors is an integer number (3136518).

Almost surely, 2^40221950 is an apocalyptic number.

40221950 is a deficient number, since it is larger than the sum of its proper divisors (35054482).

40221950 is a wasteful number, since it uses less digits than its factorization.

40221950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4996 (or 4991 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 40221950 is about 6342.0777352536. The cubic root of 40221950 is about 342.6265715795.

The spelling of 40221950 in words is "forty million, two hundred twenty-one thousand, nine hundred fifty".