1642276 has 12 divisors (see below), whose sum is σ = 2894080. Its totient is φ = 815400.

The previous prime is 1642273. The next prime is 1642279. The reversal of 1642276 is 6722461.

It is an interprime number because it is at equal distance from previous prime (1642273) and next prime (1642279).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1642273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756 + ... + 1963.

2^1642276 is an apocalyptic number.

1642276 is the 811-st centered pentagonal number.

It is an amenable number.

1642276 is a deficient number, since it is larger than the sum of its proper divisors (1251804).

1642276 is a wasteful number, since it uses less digits than its factorization.

1642276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874 (or 2872 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 1642276 is about 1281.5131680947. The cubic root of 1642276 is about 117.9818989758.

The spelling of 1642276 in words is "one million, six hundred forty-two thousand, two hundred seventy-six".