1540606 has 16 divisors (see below), whose sum is σ = 2407680. Its totient is φ = 738720.

The previous prime is 1540603. The next prime is 1540619. The reversal of 1540606 is 6060451.

1540606 = T₁₀₈ + T₁₀₉ + ... + T₂₁₈.

1540606 is a modest number, since divided by 606 gives 154 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7971 + ... + 8161.

It is an arithmetic number, because the mean of its divisors is an integer number (150480).

2^1540606 is an apocalyptic number.

1540606 is a deficient number, since it is larger than the sum of its proper divisors (867074).

1540606 is a wasteful number, since it uses less digits than its factorization.

1540606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1540606 is about 1241.2115049418. The cubic root of 1540606 is about 115.4951804239.

The spelling of 1540606 in words is "one million, five hundred forty thousand, six hundred six".