444387542 has 48 divisors (see below), whose sum is σ = 744511680. Its totient is φ = 198268560.

The previous prime is 444387521. The next prime is 444387547. The reversal of 444387542 is 245783444.

It is a super-3 number, since 3×444387542³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 444387542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444387547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1570133 + ... + 1570415.

It is an arithmetic number, because the mean of its divisors is an integer number (15510660).

Almost surely, 2^444387542 is an apocalyptic number.

444387542 is a deficient number, since it is larger than the sum of its proper divisors (300124138).

444387542 is a wasteful number, since it uses less digits than its factorization.

444387542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 378 counting only the distinct ones).

The product of its digits is 430080, while the sum is 41.

The square root of 444387542 is about 21080.5014646237. The cubic root of 444387542 is about 763.1102584596.

The spelling of 444387542 in words is "four hundred forty-four million, three hundred eighty-seven thousand, five hundred forty-two".