1645029106 has 16 divisors (see below), whose sum is σ = 2985935616. Its totient is φ = 663541056.

The previous prime is 1645029103. The next prime is 1645029119. The reversal of 1645029106 is 6019205461.

It is a super-2 number, since 2×1645029106² = 5412241519174318472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (1645029103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3455706 + ... + 3456181.

It is an arithmetic number, because the mean of its divisors is an integer number (186620976).

Almost surely, 2^1645029106 is an apocalyptic number.

1645029106 is a deficient number, since it is larger than the sum of its proper divisors (1340906510).

1645029106 is a wasteful number, since it uses less digits than its factorization.

1645029106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6911913.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1645029106 is about 40558.9583939233. The cubic root of 1645029106 is about 1180.4779032330.

The spelling of 1645029106 in words is "one billion, six hundred forty-five million, twenty-nine thousand, one hundred six".