7428145 has 8 divisors (see below), whose sum is σ = 9383040. Its totient is φ = 5629680.

The previous prime is 7428119. The next prime is 7428151. The reversal of 7428145 is 5418247.

7428145 = T₃₄₇ + T₃₄₈ + ... + T₄₄₁.

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

It is not a de Polignac number, because 7428145 - 2⁷ = 7428017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39001 + ... + 39190.

It is an arithmetic number, because the mean of its divisors is an integer number (1172880).

Almost surely, 2^7428145 is an apocalyptic number.

It is an amenable number.

7428145 is a deficient number, since it is larger than the sum of its proper divisors (1954895).

7428145 is a wasteful number, since it uses less digits than its factorization.

7428145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78215.

The product of its digits is 8960, while the sum is 31.

The square root of 7428145 is about 2725.4623460984. The cubic root of 7428145 is about 195.1162576521.

The spelling of 7428145 in words is "seven million, four hundred twenty-eight thousand, one hundred forty-five".