7420000 has 120 divisors (see below), whose sum is σ = 21255696. Its totient is φ = 2496000.

The previous prime is 7419991. The next prime is 7420001. The reversal of 7420000 is 247.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 139974 + ... + 140026.

Almost surely, 2^7420000 is an apocalyptic number.

7420000 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10627848).

7420000 is an abundant number, since it is smaller than the sum of its proper divisors (13835696).

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

7420000 is an equidigital number, since it uses as much as digits as its factorization.

7420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 67 counting only the distinct ones).

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

The square root of 7420000 is about 2723.9676943752. The cubic root of 7420000 is about 195.0449162366.

Adding to 7420000 its reverse (247), we get a palindrome (7420247).

The spelling of 7420000 in words is "seven million, four hundred twenty thousand".