46561840 has 40 divisors (see below), whose sum is σ = 116586288. Its totient is φ = 17191680.

The previous prime is 46561831. The next prime is 46561841. The reversal of 46561840 is 4816564.

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

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 46561796 and 46561805.

It is not an unprimeable number, because it can be changed into a prime (46561841) 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, 21346 + ... + 23425.

Almost surely, 2^46561840 is an apocalyptic number.

46561840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46561840 is an abundant number, since it is smaller than the sum of its proper divisors (70024448).

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

46561840 is a wasteful number, since it uses less digits than its factorization.

46561840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44797 (or 44791 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 46561840 is about 6823.6236707486. The cubic root of 46561840 is about 359.7576558258.

The spelling of 46561840 in words is "forty-six million, five hundred sixty-one thousand, eight hundred forty".