1642362047 has 4 divisors (see below), whose sum is σ = 1663151520. Its totient is φ = 1621572576.

The previous prime is 1642362037. The next prime is 1642362049. The reversal of 1642362047 is 7402632461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1642362047 - 2¹⁶ = 1642296511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1642361998 and 1642362016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642362049) 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, 10394618 + ... + 10394775.

It is an arithmetic number, because the mean of its divisors is an integer number (415787880).

Almost surely, 2^1642362047 is an apocalyptic number.

1642362047 is a deficient number, since it is larger than the sum of its proper divisors (20789473).

1642362047 is an equidigital number, since it uses as much as digits as its factorization.

1642362047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20789472.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 1642362047 is about 40526.0662660466. The cubic root of 1642362047 is about 1179.8395949250.

The spelling of 1642362047 in words is "one billion, six hundred forty-two million, three hundred sixty-two thousand, forty-seven".