7642026 has 80 divisors (see below), whose sum is σ = 20490624. Its totient is φ = 2081376.

The previous prime is 7642013. The next prime is 7642039. The reversal of 7642026 is 6202467.

It is an interprime number because it is at equal distance from previous prime (7642013) and next prime (7642039).

It is a super-2 number, since 2×7642026² = 116801122769352, which contains 22 as substring.

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

It is a Curzon 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 39 ways as a sum of consecutive naturals, for example, 25936 + ... + 26228.

Almost surely, 2^7642026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7642026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10245312).

7642026 is an abundant number, since it is smaller than the sum of its proper divisors (12848598).

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

7642026 is a wasteful number, since it uses less digits than its factorization.

7642026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 328 counting only the distinct ones).

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

The square root of 7642026 is about 2764.4214584611. The cubic root of 7642026 is about 196.9712481767.

The spelling of 7642026 in words is "seven million, six hundred forty-two thousand, twenty-six".