1642422150 has 72 divisors (see below), whose sum is σ = 4529892360. Its totient is φ = 437582160.

The previous prime is 1642422143. The next prime is 1642422151. The reversal of 1642422150 is 512242461.

1642422150 is a `hidden beast` number, since 1 + 642 + 4 + 2 + 2 + 15 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642422151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1488499 + ... + 1489601.

Almost surely, 2^1642422150 is an apocalyptic number.

1642422150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1642422150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2264946180).

1642422150 is an abundant number, since it is smaller than the sum of its proper divisors (2887470210).

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

1642422150 is an equidigital number, since it uses as much as digits as its factorization.

1642422150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227 (or 1113 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1642422150 is about 40526.8077943477. The cubic root of 1642422150 is about 1179.8539870083.

The spelling of 1642422150 in words is "one billion, six hundred forty-two million, four hundred twenty-two thousand, one hundred fifty".