1642451204 has 24 divisors (see below), whose sum is σ = 2935867200. Its totient is φ = 803754720.

The previous prime is 1642451149. The next prime is 1642451233. The reversal of 1642451204 is 4021542461.

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 7 ways as a sum of consecutive naturals, for example, 38849 + ... + 69239.

It is an arithmetic number, because the mean of its divisors is an integer number (122327800).

Almost surely, 2^1642451204 is an apocalyptic number.

It is an amenable number.

1642451204 is a deficient number, since it is larger than the sum of its proper divisors (1293415996).

1642451204 is a wasteful number, since it uses less digits than its factorization.

1642451204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30683 (or 30681 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 1642451204 is about 40527.1662468522. The cubic root of 1642451204 is about 1179.8609440657.

Adding to 1642451204 its reverse (4021542461), we get a palindrome (5663993665).

The spelling of 1642451204 in words is "one billion, six hundred forty-two million, four hundred fifty-one thousand, two hundred four".