6446372 has 6 divisors (see below), whose sum is σ = 11281158. Its totient is φ = 3223184.

The previous prime is 6446353. The next prime is 6446387. The reversal of 6446372 is 2736446.

It can be written as a sum of positive squares in only one way, i.e., 5044516 + 1401856 = 2246^2 + 1184^2 .

It is a d-powerful number, because it can be written as 6⁵ + 4⁴ + 4¹¹ + 6⁵ + 3¹³ + 7⁶ + 2¹⁹ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805793 + ... + 805800.

It is an arithmetic number, because the mean of its divisors is an integer number (1880193).

Almost surely, 2^6446372 is an apocalyptic number.

It is an amenable number.

6446372 is a deficient number, since it is larger than the sum of its proper divisors (4834786).

6446372 is a wasteful number, since it uses less digits than its factorization.

6446372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611597 (or 1611595 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 6446372 is about 2538.9706575697. The cubic root of 6446372 is about 186.1108908259.

The spelling of 6446372 in words is "six million, four hundred forty-six thousand, three hundred seventy-two".