7542620 has 48 divisors (see below), whose sum is σ = 17418240. Its totient is φ = 2730816.

The previous prime is 7542599. The next prime is 7542629. The reversal of 7542620 is 262457.

It is a super-2 number, since 2×7542620² = 113782232928800, 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 7542620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7542629) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8309 + ... + 9171.

It is an arithmetic number, because the mean of its divisors is an integer number (362880).

Almost surely, 2^7542620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7542620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8709120).

7542620 is an abundant number, since it is smaller than the sum of its proper divisors (9875620).

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

7542620 is a wasteful number, since it uses less digits than its factorization.

7542620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 7542620 is about 2746.3830759747. The cubic root of 7542620 is about 196.1134633891.

The spelling of 7542620 in words is "seven million, five hundred forty-two thousand, six hundred twenty".