1642146330 has 64 divisors (see below), whose sum is σ = 4305581568. Its totient is φ = 397527360.

The previous prime is 1642146313. The next prime is 1642146343. The reversal of 1642146330 is 336412461.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256549 + ... + 262871.

It is an arithmetic number, because the mean of its divisors is an integer number (67274712).

Almost surely, 2^1642146330 is an apocalyptic number.

1642146330 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 1642146330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2152790784).

1642146330 is an abundant number, since it is smaller than the sum of its proper divisors (2663435238).

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

1642146330 is a wasteful number, since it uses less digits than its factorization.

1642146330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7131.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1642146330 is about 40523.4047187548. The cubic root of 1642146330 is about 1179.7879370902.

Adding to 1642146330 its reverse (336412461), we get a palindrome (1978558791).

The spelling of 1642146330 in words is "one billion, six hundred forty-two million, one hundred forty-six thousand, three hundred thirty".