7825042 has 8 divisors (see below), whose sum is σ = 11753532. Its totient is φ = 3907200.

The previous prime is 7825021. The next prime is 7825057. The reversal of 7825042 is 2405287.

It can be written as a sum of positive squares in 2 ways, for example, as 7403841 + 421201 = 2721^2 + 649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7825042² = 122462564603528, 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 7825042.

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 3 ways as a sum of consecutive naturals, for example, 459 + ... + 3982.

Almost surely, 2^7825042 is an apocalyptic number.

7825042 is a deficient number, since it is larger than the sum of its proper divisors (3928490).

7825042 is a wasteful number, since it uses less digits than its factorization.

7825042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5324.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 7825042 is about 2797.3276533149. The cubic root of 7825042 is about 198.5312570404.

It can be divided in two parts, 78 and 25042, that multiplied together give a triangular number (1953276 = T₁₉₇₆).

The spelling of 7825042 in words is "seven million, eight hundred twenty-five thousand, forty-two".