46444240 has 20 divisors (see below), whose sum is σ = 107983044. Its totient is φ = 18577664.

The previous prime is 46444219. The next prime is 46444247. The reversal of 46444240 is 4244464.

It can be written as a sum of positive squares in 2 ways, for example, as 25321024 + 21123216 = 5032^2 + 4596^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 46444199 and 46444208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46444247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290197 + ... + 290356.

Almost surely, 2^46444240 is an apocalyptic number.

46444240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46444240 is an abundant number, since it is smaller than the sum of its proper divisors (61538804).

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

46444240 is a wasteful number, since it uses less digits than its factorization.

46444240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580566 (or 580560 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 46444240 is about 6815.0011005135. The cubic root of 46444240 is about 359.4545236995.

The spelling of 46444240 in words is "forty-six million, four hundred forty-four thousand, two hundred forty".