1646142026 has 16 divisors (see below), whose sum is σ = 2601754560. Its totient is φ = 778976640.

The previous prime is 1646142023. The next prime is 1646142037. The reversal of 1646142026 is 6202416461.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1646141983 and 1646142001.

It is not an unprimeable number, because it can be changed into a prime (1646142023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18170 + ... + 60186.

It is an arithmetic number, because the mean of its divisors is an integer number (162609660).

Almost surely, 2^1646142026 is an apocalyptic number.

1646142026 is a deficient number, since it is larger than the sum of its proper divisors (955612534).

1646142026 is a wasteful number, since it uses less digits than its factorization.

1646142026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43069.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 1646142026 is about 40572.6758545699. The cubic root of 1646142026 is about 1180.7440548171.

Adding to 1646142026 its reverse (6202416461), we get a palindrome (7848558487).

The spelling of 1646142026 in words is "one billion, six hundred forty-six million, one hundred forty-two thousand, twenty-six".