40003420 has 24 divisors (see below), whose sum is σ = 84224448. Its totient is φ = 15960000.

The previous prime is 40003409. The next prime is 40003451. The reversal of 40003420 is 2430004.

40003420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40003420² = 3200547223392800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40003420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6045 + ... + 10795.

It is an arithmetic number, because the mean of its divisors is an integer number (3509352).

Almost surely, 2^40003420 is an apocalyptic number.

It is an amenable number.

40003420 is an abundant number, since it is smaller than the sum of its proper divisors (44221028).

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

40003420 is a wasteful number, since it uses less digits than its factorization.

40003420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5181 (or 5179 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 40003420 is about 6324.8256892977. The cubic root of 40003420 is about 342.0049359205.

Adding to 40003420 its reverse (2430004), we get a palindrome (42433424).

The spelling of 40003420 in words is "forty million, three thousand, four hundred twenty".