1445438 has 8 divisors (see below), whose sum is σ = 2214432. Its totient is φ = 707296.

The previous prime is 1445429. The next prime is 1445443. The reversal of 1445438 is 8345441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1445438³ = 9059821864733303016, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1445438.

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 3 ways as a sum of consecutive naturals, for example, 7595 + ... + 7782.

It is an arithmetic number, because the mean of its divisors is an integer number (276804).

2^1445438 is an apocalyptic number.

1445438 is a deficient number, since it is larger than the sum of its proper divisors (768994).

1445438 is a wasteful number, since it uses less digits than its factorization.

1445438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15426.

The product of its digits is 7680, while the sum is 29.

The square root of 1445438 is about 1202.2636981960. The cubic root of 1445438 is about 113.0662936240.

The spelling of 1445438 in words is "one million, four hundred forty-five thousand, four hundred thirty-eight".