1612288390 has 8 divisors (see below), whose sum is σ = 2902119120. Its totient is φ = 644915352.

The previous prime is 1612288343. The next prime is 1612288409. The reversal of 1612288390 is 938822161.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80614410 + ... + 80614429.

It is an arithmetic number, because the mean of its divisors is an integer number (362764890).

Almost surely, 2^1612288390 is an apocalyptic number.

1612288390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1612288390 is a deficient number, since it is larger than the sum of its proper divisors (1289830730).

1612288390 is a wasteful number, since it uses less digits than its factorization.

1612288390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161228846.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 1612288390 is about 40153.3110714422. The cubic root of 1612288390 is about 1172.5937513972.

The spelling of 1612288390 in words is "one billion, six hundred twelve million, two hundred eighty-eight thousand, three hundred ninety".