7400020 has 24 divisors (see below), whose sum is σ = 16216704. Its totient is φ = 2831136.

The previous prime is 7400011. The next prime is 7400021. The reversal of 7400020 is 200047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7400021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7584 + ... + 8503.

It is an arithmetic number, because the mean of its divisors is an integer number (675696).

Almost surely, 2^7400020 is an apocalyptic number.

It is an amenable number.

7400020 is an abundant number, since it is smaller than the sum of its proper divisors (8816684).

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

7400020 is a wasteful number, since it uses less digits than its factorization.

7400020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16119 (or 16117 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 7400020 is about 2720.2977778177. The cubic root of 7400020 is about 194.8696915954.

Adding to 7400020 its reverse (200047), we get a palindrome (7600067).

The spelling of 7400020 in words is "seven million, four hundred thousand, twenty".