1540055870 has 32 divisors (see below), whose sum is σ = 2811957120. Its totient is φ = 607200160.

The previous prime is 1540055833. The next prime is 1540055893. The reversal of 1540055870 is 785500451.

It is a self number, because there is not a number n which added to its sum of digits gives 1540055870.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405641 + ... + 409419.

It is an arithmetic number, because the mean of its divisors is an integer number (87873660).

Almost surely, 2^1540055870 is an apocalyptic number.

1540055870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1540055870 is a deficient number, since it is larger than the sum of its proper divisors (1271901250).

1540055870 is a wasteful number, since it uses less digits than its factorization.

1540055870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 1540055870 is about 39243.5455839556. The cubic root of 1540055870 is about 1154.8143152083.

The spelling of 1540055870 in words is "one billion, five hundred forty million, fifty-five thousand, eight hundred seventy".