8013428 has 12 divisors (see below), whose sum is σ = 14075040. Its totient is φ = 3991992.

The previous prime is 8013403. The next prime is 8013433. The reversal of 8013428 is 8243108.

It is a super-2 number, since 2×8013428² = 128430056622368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8013397 and 8013406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2408 + ... + 4671.

It is an arithmetic number, because the mean of its divisors is an integer number (1172920).

Almost surely, 2^8013428 is an apocalyptic number.

It is an amenable number.

8013428 is a deficient number, since it is larger than the sum of its proper divisors (6061612).

8013428 is a wasteful number, since it uses less digits than its factorization.

8013428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7366 (or 7364 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 8013428 is about 2830.7998869577. The cubic root of 8013428 is about 200.1118374503. Note that the first 3 decimals are identical.

The spelling of 8013428 in words is "eight million, thirteen thousand, four hundred twenty-eight".