1642042470 has 32 divisors (see below), whose sum is σ = 3942432000. Its totient is φ = 437708000.

The previous prime is 1642042463. The next prime is 1642042541. The reversal of 1642042470 is 742402461.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 80845 + ... + 99095.

It is an arithmetic number, because the mean of its divisors is an integer number (123201000).

Almost surely, 2^1642042470 is an apocalyptic number.

1642042470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1642042470 is an abundant number, since it is smaller than the sum of its proper divisors (2300389530).

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

1642042470 is a wasteful number, since it uses less digits than its factorization.

1642042470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21260.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 1642042470 is about 40522.1232168306. The cubic root of 1642042470 is about 1179.7630640818.

The spelling of 1642042470 in words is "one billion, six hundred forty-two million, forty-two thousand, four hundred seventy".