1642479294 has 16 divisors (see below), whose sum is σ = 3299692032. Its totient is φ = 545037528.

The previous prime is 1642479269. The next prime is 1642479317. The reversal of 1642479294 is 4929742461.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612444 + ... + 615119.

It is an arithmetic number, because the mean of its divisors is an integer number (206230752).

Almost surely, 2^1642479294 is an apocalyptic number.

1642479294 is an abundant number, since it is smaller than the sum of its proper divisors (1657212738).

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

1642479294 is a wasteful number, since it uses less digits than its factorization.

1642479294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227791.

The product of its digits is 870912, while the sum is 48.

The square root of 1642479294 is about 40527.5128030330. The cubic root of 1642479294 is about 1179.8676702128.

The spelling of 1642479294 in words is "one billion, six hundred forty-two million, four hundred seventy-nine thousand, two hundred ninety-four".