1641245634 has 24 divisors (see below), whose sum is σ = 4064037120. Its totient is φ = 468927288.

The previous prime is 1641245623. The next prime is 1641245659. The reversal of 1641245634 is 4365421461.

1641245634 is a `hidden beast` number, since 1 + 6 + 4 + 12 + 4 + 5 + 634 = 666.

1641245634 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1641245634² = 5387374462248123912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6512754 + ... + 6513005.

It is an arithmetic number, because the mean of its divisors is an integer number (169334880).

Almost surely, 2^1641245634 is an apocalyptic number.

1641245634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1641245634 is an abundant number, since it is smaller than the sum of its proper divisors (2422791486).

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

1641245634 is a wasteful number, since it uses less digits than its factorization.

1641245634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13025774 (or 13025771 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1641245634 is about 40512.2899130622. The cubic root of 1641245634 is about 1179.5721981728.

The spelling of 1641245634 in words is "one billion, six hundred forty-one million, two hundred forty-five thousand, six hundred thirty-four".