3942928 has 40 divisors (see below), whose sum is σ = 8544096. Its totient is φ = 1747200.

The previous prime is 3942923. The next prime is 3942931. The reversal of 3942928 is 8292493.

It is a super-3 number, since 3×3942928³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3942923) 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, 7308 + ... + 7828.

Almost surely, 2^3942928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3942928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4272048).

3942928 is an abundant number, since it is smaller than the sum of its proper divisors (4601168).

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

3942928 is a wasteful number, since it uses less digits than its factorization.

3942928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 577 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 3942928 is about 1985.6807396961. The cubic root of 3942928 is about 157.9815178937.

The spelling of 3942928 in words is "three million, nine hundred forty-two thousand, nine hundred twenty-eight".