1543480490 has 32 divisors (see below), whose sum is σ = 2972050704. Its totient is φ = 575078400.

The previous prime is 1543480489. The next prime is 1543480501. The reversal of 1543480490 is 940843451.

It can be written as a sum of positive squares in 8 ways, for example, as 1286872129 + 256608361 = 35873^2 + 16019^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30311 + ... + 63290.

Almost surely, 2^1543480490 is an apocalyptic number.

1543480490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1543480490 is a deficient number, since it is larger than the sum of its proper divisors (1428570214).

1543480490 is a wasteful number, since it uses less digits than its factorization.

1543480490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93722.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 1543480490 is about 39287.1542619213. The cubic root of 1543480490 is about 1155.6696678106.

The spelling of 1543480490 in words is "one billion, five hundred forty-three million, four hundred eighty thousand, four hundred ninety".