1942521 has 16 divisors (see below), whose sum is σ = 2980224. Its totient is φ = 1102464.

The previous prime is 1942519. The next prime is 1942529. The reversal of 1942521 is 1252491.

It is not a de Polignac number, because 1942521 - 2¹ = 1942519 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1942491 and 1942500.

It is not an unprimeable number, because it can be changed into a prime (1942529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4695 + ... + 5091.

It is an arithmetic number, because the mean of its divisors is an integer number (186264).

2^1942521 is an apocalyptic number.

It is an amenable number.

1942521 is a deficient number, since it is larger than the sum of its proper divisors (1037703).

1942521 is a wasteful number, since it uses less digits than its factorization.

1942521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640.

The product of its digits is 720, while the sum is 24.

The square root of 1942521 is about 1393.7435201643. The cubic root of 1942521 is about 124.7733706949.

The spelling of 1942521 in words is "one million, nine hundred forty-two thousand, five hundred twenty-one".