40022330 has 16 divisors (see below), whose sum is σ = 72358920. Its totient is φ = 15938112.

The previous prime is 40022329. The next prime is 40022347. The reversal of 40022330 is 3322004.

It can be written as a sum of positive squares in 4 ways, for example, as 32410249 + 7612081 = 5693^2 + 2759^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6449 + ... + 11028.

Almost surely, 2^40022330 is an apocalyptic number.

40022330 is a deficient number, since it is larger than the sum of its proper divisors (32336590).

40022330 is a wasteful number, since it uses less digits than its factorization.

40022330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17713.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 40022330 is about 6326.3204155338. The cubic root of 40022330 is about 342.0588171016.

Adding to 40022330 its reverse (3322004), we get a palindrome (43344334).

The spelling of 40022330 in words is "forty million, twenty-two thousand, three hundred thirty".