1641552 has 40 divisors (see below), whose sum is σ = 4627680. Its totient is φ = 497280.

The previous prime is 1641539. The next prime is 1641559. The reversal of 1641552 is 2551461.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1027 + ... + 2082.

It is an arithmetic number, because the mean of its divisors is an integer number (115692).

2^1641552 is an apocalyptic number.

1641552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1641552 is an abundant number, since it is smaller than the sum of its proper divisors (2986128).

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

1641552 is a wasteful number, since it uses less digits than its factorization.

1641552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131 (or 3125 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 1641552 is about 1281.2306583906. The cubic root of 1641552 is about 117.9645589245.

Subtracting 1641552 from its reverse (2551461), we obtain a palindrome (909909).

The spelling of 1641552 in words is "one million, six hundred forty-one thousand, five hundred fifty-two".