21062328 has 32 divisors (see below), whose sum is σ = 60178560. Its totient is φ = 6017760.

The previous prime is 21062309. The next prime is 21062339. The reversal of 21062328 is 82326012.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 21062298 and 21062307.

It is a congruent number.

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, 62518 + ... + 62853.

It is an arithmetic number, because the mean of its divisors is an integer number (1880580).

Almost surely, 2^21062328 is an apocalyptic number.

21062328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21062328 is an abundant number, since it is smaller than the sum of its proper divisors (39116232).

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

21062328 is a wasteful number, since it uses less digits than its factorization.

21062328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125387 (or 125383 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 21062328 is about 4589.3711987592. The cubic root of 21062328 is about 276.1650976096.

The spelling of 21062328 in words is "twenty-one million, sixty-two thousand, three hundred twenty-eight".