1461216642 has 16 divisors (see below), whose sum is σ = 2923050240. Its totient is φ = 486969392.

The previous prime is 1461216629. The next prime is 1461216689. The reversal of 1461216642 is 2466121641.

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, 8608 + ... + 54740.

It is an arithmetic number, because the mean of its divisors is an integer number (182690640).

Almost surely, 2^1461216642 is an apocalyptic number.

1461216642 is an abundant number, since it is smaller than the sum of its proper divisors (1461833598).

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

1461216642 is a wasteful number, since it uses less digits than its factorization.

1461216642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51417.

The product of its digits is 13824, while the sum is 33.

The square root of 1461216642 is about 38225.8635219664. The cubic root of 1461216642 is about 1134.7622243796.

The spelling of 1461216642 in words is "one billion, four hundred sixty-one million, two hundred sixteen thousand, six hundred forty-two".