1645482838 has 8 divisors (see below), whose sum is σ = 2514794688. Its totient is φ = 807217944.

The previous prime is 1645482827. The next prime is 1645482851. The reversal of 1645482838 is 8382845461.

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

It is a super-2 number, since 2×1645482838² = 5415227540305068488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1645482791 and 1645482800.

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, 7761606 + ... + 7761817.

It is an arithmetic number, because the mean of its divisors is an integer number (314349336).

Almost surely, 2^1645482838 is an apocalyptic number.

1645482838 is a deficient number, since it is larger than the sum of its proper divisors (869311850).

1645482838 is a wasteful number, since it uses less digits than its factorization.

1645482838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15523478.

The product of its digits is 1474560, while the sum is 49.

The square root of 1645482838 is about 40564.5514951170. The cubic root of 1645482838 is about 1180.5864264116.

The spelling of 1645482838 in words is "one billion, six hundred forty-five million, four hundred eighty-two thousand, eight hundred thirty-eight".