541621440 has 168 divisors, whose sum is σ = 1894106448. Its totient is φ = 142018560.

The previous prime is 541621403. The next prime is 541621471. The reversal of 541621440 is 44126145.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174139 + ... + 177221.

Almost surely, 2^541621440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 541621440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (947053224).

541621440 is an abundant number, since it is smaller than the sum of its proper divisors (1352485008).

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

541621440 is a wasteful number, since it uses less digits than its factorization.

541621440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167 (or 3154 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 541621440 is about 23272.7617613381. The cubic root of 541621440 is about 815.1395196926.

Adding to 541621440 its reverse (44126145), we get a palindrome (585747585).

The spelling of 541621440 in words is "five hundred forty-one million, six hundred twenty-one thousand, four hundred forty".