4401390 has 32 divisors (see below), whose sum is σ = 12072960. Its totient is φ = 1005984.

The previous prime is 4401373. The next prime is 4401403. The reversal of 4401390 is 931044.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10270 + ... + 10689.

It is an arithmetic number, because the mean of its divisors is an integer number (377280).

Almost surely, 2^4401390 is an apocalyptic number.

4401390 is an abundant number, since it is smaller than the sum of its proper divisors (7671570).

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

4401390 is a wasteful number, since it uses less digits than its factorization.

4401390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20976.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 4401390 is about 2097.9489984268. The cubic root of 4401390 is about 163.8815077059.

It can be divided in two parts, 440 and 1390, that added together give a triangular number (1830 = T₆₀).

The spelling of 4401390 in words is "four million, four hundred one thousand, three hundred ninety".