1642253036 has 12 divisors (see below), whose sum is σ = 2891575512. Its totient is φ = 816088608.

The previous prime is 1642253021. The next prime is 1642253051. The reversal of 1642253036 is 6303522461.

It is an interprime number because it is at equal distance from previous prime (1642253021) and next prime (1642253051).

It is a junction number, because it is equal to n+sod(n) for n = 1642252993 and 1642253011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258745 + ... + 1260048.

It is an arithmetic number, because the mean of its divisors is an integer number (240964626).

Almost surely, 2^1642253036 is an apocalyptic number.

It is an amenable number.

1642253036 is a deficient number, since it is larger than the sum of its proper divisors (1249322476).

1642253036 is a wasteful number, since it uses less digits than its factorization.

1642253036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518960 (or 2518958 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 1642253036 is about 40524.7212945382. The cubic root of 1642253036 is about 1179.8134905834.

Adding to 1642253036 its reverse (6303522461), we get a palindrome (7945775497).

The spelling of 1642253036 in words is "one billion, six hundred forty-two million, two hundred fifty-three thousand, thirty-six".