46442840 has 64 divisors (see below), whose sum is σ = 112168800. Its totient is φ = 17252352.

The previous prime is 46442839. The next prime is 46442857. The reversal of 46442840 is 4824464.

It is a junction number, because it is equal to n+sod(n) for n = 46442797 and 46442806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39704 + ... + 40856.

Almost surely, 2^46442840 is an apocalyptic number.

46442840 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 46442840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56084400).

46442840 is an abundant number, since it is smaller than the sum of its proper divisors (65725960).

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

46442840 is a wasteful number, since it uses less digits than its factorization.

46442840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 46442840 is about 6814.8983851559. The cubic root of 46442840 is about 359.4509119033.

The spelling of 46442840 in words is "forty-six million, four hundred forty-two thousand, eight hundred forty".