46442440 has 64 divisors (see below), whose sum is σ = 115992000. Its totient is φ = 16592640.

The previous prime is 46442423. The next prime is 46442443. The reversal of 46442440 is 4424464.

It is a junction number, because it is equal to n+sod(n) for n = 46442399 and 46442408.

It is not an unprimeable number, because it can be changed into a prime (46442443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25066 + ... + 26854.

It is an arithmetic number, because the mean of its divisors is an integer number (1812375).

Almost surely, 2^46442440 is an apocalyptic number.

46442440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46442440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57996000).

46442440 is an abundant number, since it is smaller than the sum of its proper divisors (69549560).

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

46442440 is a wasteful number, since it uses less digits than its factorization.

46442440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870 (or 1866 counting only the distinct ones).

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

The square root of 46442440 is about 6814.8690376265. The cubic root of 46442440 is about 359.4498799482.

It can be divided in two parts, 464424 and 40, that added together give a palindrome (464464).

The spelling of 46442440 in words is "forty-six million, four hundred forty-two thousand, four hundred forty".