40219700 has 18 divisors (see below), whose sum is σ = 87276966. Its totient is φ = 16087840.

The previous prime is 40219693. The next prime is 40219721. The reversal of 40219700 is 791204.

It can be written as a sum of positive squares in 3 ways, for example, as 630436 + 39589264 = 794^2 + 6292^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200999 + ... + 201198.

Almost surely, 2^40219700 is an apocalyptic number.

It is an amenable number.

40219700 is an abundant number, since it is smaller than the sum of its proper divisors (47057266).

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

40219700 is a wasteful number, since it uses less digits than its factorization.

40219700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402211 (or 402204 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 40219700 is about 6341.9003461108. The cubic root of 40219700 is about 342.6201826620.

It can be divided in two parts, 402 and 19700, that added together give a palindrome (20102).

The spelling of 40219700 in words is "forty million, two hundred nineteen thousand, seven hundred".