2157383390 has 8 divisors (see below), whose sum is σ = 3883290120. Its totient is φ = 862953352.

The previous prime is 2157383377. The next prime is 2157383411. The reversal of 2157383390 is 933837512.

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, 107869160 + ... + 107869179.

It is an arithmetic number, because the mean of its divisors is an integer number (485411265).

Almost surely, 2^2157383390 is an apocalyptic number.

2157383390 is a deficient number, since it is larger than the sum of its proper divisors (1725906730).

2157383390 is a wasteful number, since it uses less digits than its factorization.

2157383390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215738346.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 2157383390 is about 46447.6413825288. The cubic root of 2157383390 is about 1292.1386294614.

The spelling of 2157383390 in words is "two billion, one hundred fifty-seven million, three hundred eighty-three thousand, three hundred ninety".