4392642 has 16 divisors (see below), whose sum is σ = 8817120. Its totient is φ = 1458912.

The previous prime is 4392611. The next prime is 4392653. The reversal of 4392642 is 2462934.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4² + 3 + 9⁵ + 2¹³ + 6 + 4¹¹ + 2¹⁷ .

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, 709 + ... + 3047.

It is an arithmetic number, because the mean of its divisors is an integer number (551070).

Almost surely, 2^4392642 is an apocalyptic number.

4392642 is an abundant number, since it is smaller than the sum of its proper divisors (4424478).

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

4392642 is a wasteful number, since it uses less digits than its factorization.

4392642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657.

The product of its digits is 10368, while the sum is 30.

The square root of 4392642 is about 2095.8630680462. The cubic root of 4392642 is about 163.7728612489.

It can be divided in two parts, 439 and 2642, that added together give a triangular number (3081 = T₇₈).

The spelling of 4392642 in words is "four million, three hundred ninety-two thousand, six hundred forty-two".