40124402 has 4 divisors (see below), whose sum is σ = 60186606. Its totient is φ = 20062200.

The previous prime is 40124401. The next prime is 40124411. The reversal of 40124402 is 20442104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37100281 + 3024121 = 6091^2 + 1739^2 .

It is not an unprimeable number, because it can be changed into a prime (40124401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10031099 + ... + 10031102.

Almost surely, 2^40124402 is an apocalyptic number.

40124402 is a deficient number, since it is larger than the sum of its proper divisors (20062204).

40124402 is a wasteful number, since it uses less digits than its factorization.

40124402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20062203.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 40124402 is about 6334.3825271292. The cubic root of 40124402 is about 342.3493631355.

Adding to 40124402 its reverse (20442104), we get a palindrome (60566506).

The spelling of 40124402 in words is "forty million, one hundred twenty-four thousand, four hundred two".