46388538 has 80 divisors (see below), whose sum is σ = 125104320. Its totient is φ = 12550464.

The previous prime is 46388533. The next prime is 46388543. The reversal of 46388538 is 83588364.

46388538 is a `hidden beast` number, since 4 + 638 + 8 + 5 + 3 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (46388533) and next prime (46388543).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 46388493 and 46388502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46388533) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20470 + ... + 22622.

It is an arithmetic number, because the mean of its divisors is an integer number (1563804).

Almost surely, 2^46388538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46388538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62552160).

46388538 is an abundant number, since it is smaller than the sum of its proper divisors (78715782).

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

46388538 is a wasteful number, since it uses less digits than its factorization.

46388538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193 (or 2184 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 46388538 is about 6810.9131546365. The cubic root of 46388538 is about 359.3107646048.

The spelling of 46388538 in words is "forty-six million, three hundred eighty-eight thousand, five hundred thirty-eight".