1541400220 has 24 divisors (see below), whose sum is σ = 3237696000. Its totient is φ = 616416192.

The previous prime is 1541400169. The next prime is 1541400227. The reversal of 1541400220 is 220041451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1541400227) 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, 135306 + ... + 146254.

It is an arithmetic number, because the mean of its divisors is an integer number (134904000).

Almost surely, 2^1541400220 is an apocalyptic number.

1541400220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1541400220 is an abundant number, since it is smaller than the sum of its proper divisors (1696295780).

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

1541400220 is a wasteful number, since it uses less digits than its factorization.

1541400220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17997 (or 17995 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1541400220 is about 39260.6701420136. The cubic root of 1541400220 is about 1155.1502387601.

Adding to 1541400220 its reverse (220041451), we get a palindrome (1761441671).

The spelling of 1541400220 in words is "one billion, five hundred forty-one million, four hundred thousand, two hundred twenty".