1452638 has 8 divisors (see below), whose sum is σ = 2377080. Its totient is φ = 660280.

The previous prime is 1452637. The next prime is 1452653. The reversal of 1452638 is 8362541.

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

It is a super-2 number, since 2×1452638² = 4220314318088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1452638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1452631) by changing a digit.

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, 32993 + ... + 33036.

It is an arithmetic number, because the mean of its divisors is an integer number (297135).

2^1452638 is an apocalyptic number.

1452638 is a deficient number, since it is larger than the sum of its proper divisors (924442).

1452638 is a wasteful number, since it uses less digits than its factorization.

1452638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66042.

The product of its digits is 5760, while the sum is 29.

The square root of 1452638 is about 1205.2543300067. The cubic root of 1452638 is about 113.2537176324.

Subtracting 1452638 from its reverse (8362541), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 1452638 in words is "one million, four hundred fifty-two thousand, six hundred thirty-eight".