1628140342 has 8 divisors (see below), whose sum is σ = 2442384000. Its totient is φ = 814012344.

The previous prime is 1628140331. The next prime is 1628140373. The reversal of 1628140342 is 2430418261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31659 + ... + 65257.

It is an arithmetic number, because the mean of its divisors is an integer number (305298000).

Almost surely, 2^1628140342 is an apocalyptic number.

1628140342 is a deficient number, since it is larger than the sum of its proper divisors (814243658).

1628140342 is a wasteful number, since it uses less digits than its factorization.

1628140342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57830.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1628140342 is about 40350.2210898528. The cubic root of 1628140342 is about 1176.4241893586.

The spelling of 1628140342 in words is "one billion, six hundred twenty-eight million, one hundred forty thousand, three hundred forty-two".