7420115 has 4 divisors (see below), whose sum is σ = 8904144. Its totient is φ = 5936088.

The previous prime is 7420111. The next prime is 7420121. The reversal of 7420115 is 5110247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7420115 - 2² = 7420111 is a prime.

It is a super-2 number, since 2×7420115² = 110116213226450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7420111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742007 + ... + 742016.

It is an arithmetic number, because the mean of its divisors is an integer number (2226036).

Almost surely, 2^7420115 is an apocalyptic number.

7420115 is a deficient number, since it is larger than the sum of its proper divisors (1484029).

7420115 is a wasteful number, since it uses less digits than its factorization.

7420115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484028.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 7420115 is about 2723.9888032075. The cubic root of 7420115 is about 195.0459238758.

The spelling of 7420115 in words is "seven million, four hundred twenty thousand, one hundred fifteen".