1634045670 has 64 divisors (see below), whose sum is σ = 4400671680. Its totient is φ = 431424000.

The previous prime is 1634045641. The next prime is 1634045671. The reversal of 1634045670 is 765404361.

It is a happy number.

1634045670 is a `hidden beast` number, since 163 + 40 + 456 + 7 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634045671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2691 + ... + 57230.

It is an arithmetic number, because the mean of its divisors is an integer number (68760495).

Almost surely, 2^1634045670 is an apocalyptic number.

1634045670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1634045670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2200335840).

1634045670 is an abundant number, since it is smaller than the sum of its proper divisors (2766626010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1634045670 is a wasteful number, since it uses less digits than its factorization.

1634045670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60038 (or 60032 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 1634045670 is about 40423.3307633104. The cubic root of 1634045670 is about 1177.8447852354.

The spelling of 1634045670 in words is "one billion, six hundred thirty-four million, forty-five thousand, six hundred seventy".