481540 has 12 divisors (see below), whose sum is σ = 1011276. Its totient is φ = 192608.

The previous prime is 481531. The next prime is 481549. The reversal of 481540 is 45184.

It is an interprime number because it is at equal distance from previous prime (481531) and next prime (481549).

It can be written as a sum of positive squares in 2 ways, for example, as 334084 + 147456 = 578^2 + 384^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12019 + ... + 12058.

It is an arithmetic number, because the mean of its divisors is an integer number (84273).

2⁴⁸¹⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

481540 is an abundant number, since it is smaller than the sum of its proper divisors (529736).

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

481540 is a wasteful number, since it uses less digits than its factorization.

481540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24086 (or 24084 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 481540 is about 693.9308322881. The cubic root of 481540 is about 78.3809981021.

It can be divided in two parts, 48 and 1540, that multiplied together give a triangular number (73920 = T₃₈₄).

The spelling of 481540 in words is "four hundred eighty-one thousand, five hundred forty".