40240002 has 48 divisors (see below), whose sum is σ = 90588960. Its totient is φ = 11901120.

The previous prime is 40239971. The next prime is 40240007. The reversal of 40240002 is 20004204.

It is a self number, because there is not a number n which added to its sum of digits gives 40240002.

It is not an unprimeable number, because it can be changed into a prime (40240007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30574 + ... + 31862.

It is an arithmetic number, because the mean of its divisors is an integer number (1887270).

Almost surely, 2^40240002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40240002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45294480).

40240002 is an abundant number, since it is smaller than the sum of its proper divisors (50348958).

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

40240002 is a wasteful number, since it uses less digits than its factorization.

40240002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359 (or 1348 counting only the distinct ones).

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

The square root of 40240002 is about 6343.5007685031. The cubic root of 40240002 is about 342.6778219523.

Adding to 40240002 its reverse (20004204), we get a palindrome (60244206).

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

The spelling of 40240002 in words is "forty million, two hundred forty thousand, two".