7842045 has 16 divisors (see below), whose sum is σ = 12586752. Its totient is φ = 4169280.

The previous prime is 7842031. The next prime is 7842047. The reversal of 7842045 is 5402487.

7842045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7842045 - 2⁵ = 7842013 is a prime.

It is a super-2 number, since 2×7842045² = 122995339564050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7842047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5859 + ... + 7071.

It is an arithmetic number, because the mean of its divisors is an integer number (786672).

Almost surely, 2^7842045 is an apocalyptic number.

It is an amenable number.

7842045 is a deficient number, since it is larger than the sum of its proper divisors (4744707).

7842045 is a wasteful number, since it uses less digits than its factorization.

7842045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 7842045 is about 2800.3651547611. The cubic root of 7842045 is about 198.6749489188.

The spelling of 7842045 in words is "seven million, eight hundred forty-two thousand, forty-five".