1642870716 has 24 divisors (see below), whose sum is σ = 3836402640. Its totient is φ = 547189632.

The previous prime is 1642870693. The next prime is 1642870717. The reversal of 1642870716 is 6170782461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642870717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38281 + ... + 68928.

It is an arithmetic number, because the mean of its divisors is an integer number (159850110).

Almost surely, 2^1642870716 is an apocalyptic number.

It is an amenable number.

1642870716 is an abundant number, since it is smaller than the sum of its proper divisors (2193531924).

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

1642870716 is a wasteful number, since it uses less digits than its factorization.

1642870716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108493 (or 108491 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 1642870716 is about 40532.3416051923. The cubic root of 1642870716 is about 1179.9613881840.

The spelling of 1642870716 in words is "one billion, six hundred forty-two million, eight hundred seventy thousand, seven hundred sixteen".