46543440 has 80 divisors (see below), whose sum is σ = 145972800. Its totient is φ = 12266496.

The previous prime is 46543439. The next prime is 46543451. The reversal of 46543440 is 4434564.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 46543398 and 46543407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20271 + ... + 22449.

It is an arithmetic number, because the mean of its divisors is an integer number (1824660).

Almost surely, 2^46543440 is an apocalyptic number.

46543440 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 46543440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72986400).

46543440 is an abundant number, since it is smaller than the sum of its proper divisors (99429360).

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

46543440 is a wasteful number, since it uses less digits than its factorization.

46543440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284 (or 2278 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 46543440 is about 6822.2752802859. The cubic root of 46543440 is about 359.7102606984.

The spelling of 46543440 in words is "forty-six million, five hundred forty-three thousand, four hundred forty".