1642344270 has 96 divisors (see below), whose sum is σ = 4630099968. Its totient is φ = 371714112.

The previous prime is 1642344259. The next prime is 1642344293. The reversal of 1642344270 is 724432461.

1642344270 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 145987 + ... + 156833.

It is an arithmetic number, because the mean of its divisors is an integer number (48230208).

Almost surely, 2^1642344270 is an apocalyptic number.

1642344270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1642344270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2315049984).

1642344270 is an abundant number, since it is smaller than the sum of its proper divisors (2987755698).

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

1642344270 is a wasteful number, since it uses less digits than its factorization.

1642344270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10974 (or 10967 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 1642344270 is about 40525.8469374793. The cubic root of 1642344270 is about 1179.8353380308.

The spelling of 1642344270 in words is "one billion, six hundred forty-two million, three hundred forty-four thousand, two hundred seventy".