40002402 has 32 divisors (see below), whose sum is σ = 89642304. Its totient is φ = 11793600.

The previous prime is 40002379. The next prime is 40002421. The reversal of 40002402 is 20420004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5749 + ... + 10632.

It is an arithmetic number, because the mean of its divisors is an integer number (2801322).

Almost surely, 2^40002402 is an apocalyptic number.

40002402 is an abundant number, since it is smaller than the sum of its proper divisors (49639902).

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

40002402 is a wasteful number, since it uses less digits than its factorization.

40002402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16434.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 40002402 is about 6324.7452122595. The cubic root of 40002402 is about 342.0020348020.

Adding to 40002402 its reverse (20420004), we get a palindrome (60422406).

It can be divided in two parts, 40002 and 402, that added together give a palindrome (40404).

The spelling of 40002402 in words is "forty million, two thousand, four hundred two".