1555484 has 24 divisors (see below), whose sum is σ = 3157728. Its totient is φ = 656640.

The previous prime is 1555481. The next prime is 1555507. The reversal of 1555484 is 4845551.

It is a self number, because there is not a number n which added to its sum of digits gives 1555484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1555481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1664 + ... + 2424.

It is an arithmetic number, because the mean of its divisors is an integer number (131572).

2^1555484 is an apocalyptic number.

1555484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1555484 is an abundant number, since it is smaller than the sum of its proper divisors (1602244).

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

1555484 is a wasteful number, since it uses less digits than its factorization.

1555484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 843 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 1555484 is about 1247.1904425548. The cubic root of 1555484 is about 115.8657781665.

It can be divided in two parts, 15554 and 84, that multiplied together give a triangular number (1306536 = T₁₆₁₆).

The spelling of 1555484 in words is "one million, five hundred fifty-five thousand, four hundred eighty-four".