1020546 has 16 divisors (see below), whose sum is σ = 2268000. Its totient is φ = 340164.

The previous prime is 1020541. The next prime is 1020557. The reversal of 1020546 is 6450201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1020541) 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, 9396 + ... + 9503.

It is an arithmetic number, because the mean of its divisors is an integer number (141750).

2^1020546 is an apocalyptic number.

1020546 is an abundant number, since it is smaller than the sum of its proper divisors (1247454).

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

1020546 is a wasteful number, since it uses less digits than its factorization.

1020546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18910 (or 18904 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1020546 is about 1010.2207679512. The cubic root of 1020546 is about 100.6802290593.

Subtracting from 1020546 its product of nonzero digits (240), we obtain a triangular number (1020306 = T₁₄₂₈).

Adding to 1020546 its reverse (6450201), we get a palindrome (7470747).

The spelling of 1020546 in words is "one million, twenty thousand, five hundred forty-six".