3926428 has 12 divisors (see below), whose sum is σ = 7495992. Its totient is φ = 1784720.

The previous prime is 3926423. The next prime is 3926431. The reversal of 3926428 is 8246293.

It is a d-powerful number, because it can be written as 3⁷ + 9 + 2¹⁷ + 6⁸ + 4⁷ + 2²¹ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 3926393 and 3926402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3926423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44575 + ... + 44662.

It is an arithmetic number, because the mean of its divisors is an integer number (624666).

Almost surely, 2^3926428 is an apocalyptic number.

It is an amenable number.

3926428 is a deficient number, since it is larger than the sum of its proper divisors (3569564).

3926428 is a wasteful number, since it uses less digits than its factorization.

3926428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89252 (or 89250 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 3926428 is about 1981.5216375301. The cubic root of 3926428 is about 157.7608409748.

The spelling of 3926428 in words is "three million, nine hundred twenty-six thousand, four hundred twenty-eight".