40420002 has 24 divisors (see below), whose sum is σ = 94039056. Its totient is φ = 11548488.

The previous prime is 40419991. The next prime is 40420007. The reversal of 40420002 is 20002404.

It is a self number, because there is not a number n which added to its sum of digits gives 40420002.

It is not an unprimeable number, because it can be changed into a prime (40420007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68448 + ... + 69035.

It is an arithmetic number, because the mean of its divisors is an integer number (3918294).

Almost surely, 2^40420002 is an apocalyptic number.

40420002 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40420002 is an abundant number, since it is smaller than the sum of its proper divisors (53619054).

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

40420002 is a wasteful number, since it uses less digits than its factorization.

40420002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137502 (or 137495 counting only the distinct ones).

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

The square root of 40420002 is about 6357.6726873912. The cubic root of 40420002 is about 343.1880129860.

Adding to 40420002 its reverse (20002404), we get a palindrome (60422406).

It can be divided in two parts, 404 and 20002, that multiplied together give a palindrome (8080808).

The spelling of 40420002 in words is "forty million, four hundred twenty thousand, two".