7620426 has 32 divisors (see below), whose sum is σ = 18475200. Its totient is φ = 2309040.

The previous prime is 7620421. The next prime is 7620427. The reversal of 7620426 is 6240267.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 7620426.

It is not an unprimeable number, because it can be changed into a prime (7620421) 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 15 ways as a sum of consecutive naturals, for example, 5821 + ... + 7008.

It is an arithmetic number, because the mean of its divisors is an integer number (577350).

Almost surely, 2^7620426 is an apocalyptic number.

7620426 is an abundant number, since it is smaller than the sum of its proper divisors (10854774).

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

7620426 is a wasteful number, since it uses less digits than its factorization.

7620426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12851 (or 12845 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 7620426 is about 2760.5119090488. The cubic root of 7620426 is about 196.7854949155.

It can be divided in two parts, 76 and 20426, that added together give a palindrome (20502).

The spelling of 7620426 in words is "seven million, six hundred twenty thousand, four hundred twenty-six".