7306428 has 24 divisors (see below), whose sum is σ = 17226832. Its totient is φ = 2409984.

The previous prime is 7306423. The next prime is 7306471. The reversal of 7306428 is 8246037.

It is a super-4 number, since 4×7306428⁴ (a number of 29 digits) contains 4444 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7306395 and 7306404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7306423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975 + ... + 4302.

Almost surely, 2^7306428 is an apocalyptic number.

It is an amenable number.

7306428 is an abundant number, since it is smaller than the sum of its proper divisors (9920404).

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

7306428 is a wasteful number, since it uses less digits than its factorization.

7306428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6381 (or 6379 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 7306428 is about 2703.0405102403. The cubic root of 7306428 is about 194.0446632562.

The spelling of 7306428 in words is "seven million, three hundred six thousand, four hundred twenty-eight".