1846906640 has 40 divisors (see below), whose sum is σ = 4342322520. Its totient is φ = 730459136.

The previous prime is 1846906613. The next prime is 1846906651. The reversal of 1846906640 is 466096481.

It can be written as a sum of positive squares in 4 ways, for example, as 24641296 + 1822265344 = 4964^2 + 42688^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1846906640² = 6822128273752179200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1846906591 and 1846906600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122579 + ... + 136818.

It is an arithmetic number, because the mean of its divisors is an integer number (108558063).

Almost surely, 2^1846906640 is an apocalyptic number.

1846906640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1846906640 is an abundant number, since it is smaller than the sum of its proper divisors (2495415880).

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

1846906640 is a wasteful number, since it uses less digits than its factorization.

1846906640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259499 (or 259493 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 1846906640 is about 42975.6517111725. The cubic root of 1846906640 is about 1226.9164261178.

The spelling of 1846906640 in words is "one billion, eight hundred forty-six million, nine hundred six thousand, six hundred forty".