7574742 has 64 divisors (see below), whose sum is σ = 19929600. Its totient is φ = 2086560.

The previous prime is 7574719. The next prime is 7574747. The reversal of 7574742 is 2474757.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7574697 and 7574706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7574747) 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 31 ways as a sum of consecutive naturals, for example, 10617 + ... + 11307.

It is an arithmetic number, because the mean of its divisors is an integer number (311400).

Almost surely, 2^7574742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7574742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9964800).

7574742 is an abundant number, since it is smaller than the sum of its proper divisors (12354858).

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

7574742 is a wasteful number, since it uses less digits than its factorization.

7574742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 732 counting only the distinct ones).

The product of its digits is 54880, while the sum is 36.

The square root of 7574742 is about 2752.2249181344. The cubic root of 7574742 is about 196.3914673656.

The spelling of 7574742 in words is "seven million, five hundred seventy-four thousand, seven hundred forty-two".