1540010 has 8 divisors (see below), whose sum is σ = 2772036. Its totient is φ = 616000.

The previous prime is 1540009. The next prime is 1540027. The reversal of 1540010 is 100451.

It can be written as a sum of positive squares in 2 ways, for example, as 1515361 + 24649 = 1231^2 + 157^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1539973 and 1540000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76991 + ... + 77010.

2^1540010 is an apocalyptic number.

1540010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1540010 is a deficient number, since it is larger than the sum of its proper divisors (1232026).

1540010 is a wasteful number, since it uses less digits than its factorization.

1540010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154008.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1540010 is about 1240.9713937074. The cubic root of 1540010 is about 115.4802849854.

Adding to 1540010 its reverse (100451), we get a palindrome (1640461).

The spelling of 1540010 in words is "one million, five hundred forty thousand, ten".