1620206342 has 32 divisors (see below), whose sum is σ = 2675116800. Its totient is φ = 732539808.

The previous prime is 1620206327. The next prime is 1620206353. The reversal of 1620206342 is 2436020261.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476384 + ... + 479772.

It is an arithmetic number, because the mean of its divisors is an integer number (83597400).

Almost surely, 2^1620206342 is an apocalyptic number.

1620206342 is a deficient number, since it is larger than the sum of its proper divisors (1054910458).

1620206342 is a wasteful number, since it uses less digits than its factorization.

1620206342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1620206342 is about 40251.7868174818. The cubic root of 1620206342 is about 1174.5101545312.

The spelling of 1620206342 in words is "one billion, six hundred twenty million, two hundred six thousand, three hundred forty-two".