33400240402 has 16 divisors (see below), whose sum is σ = 50260995072. Its totient is φ = 16646627920.

The previous prime is 33400240399. The next prime is 33400240453. The reversal of 33400240402 is 20404200433.

It is a super-2 number, since 2×33400240402² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1375188 + ... + 1399264.

It is an arithmetic number, because the mean of its divisors is an integer number (3141312192).

Almost surely, 2^33400240402 is an apocalyptic number.

33400240402 is a deficient number, since it is larger than the sum of its proper divisors (16860754670).

33400240402 is a wasteful number, since it uses less digits than its factorization.

33400240402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26273.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 33400240402 its reverse (20404200433), we get a palindrome (53804440835).

The spelling of 33400240402 in words is "thirty-three billion, four hundred million, two hundred forty thousand, four hundred two".