15813428 has 12 divisors (see below), whose sum is σ = 27730080. Its totient is φ = 7890552.

The previous prime is 15813419. The next prime is 15813433. The reversal of 15813428 is 82431851.

15813428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15813428² = 500129010222368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15813394 and 15813403.

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, 1688 + ... + 5871.

It is an arithmetic number, because the mean of its divisors is an integer number (2310840).

Almost surely, 2^15813428 is an apocalyptic number.

It is an amenable number.

15813428 is a deficient number, since it is larger than the sum of its proper divisors (11916652).

15813428 is a wasteful number, since it uses less digits than its factorization.

15813428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8086 (or 8084 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 15813428 is about 3976.6101141550. The cubic root of 15813428 is about 251.0009364896. Note that the first 3 decimals are identical.

The spelling of 15813428 in words is "fifteen million, eight hundred thirteen thousand, four hundred twenty-eight".