46428381 has 24 divisors (see below), whose sum is σ = 71766240. Its totient is φ = 28836000.

The previous prime is 46428373. The next prime is 46428397. The reversal of 46428381 is 18382464.

46428381 is a `hidden beast` number, since 4 + 642 + 8 + 3 + 8 + 1 = 666.

46428381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 46428381 - 2³ = 46428373 is a prime.

It is a super-4 number, since 4×46428381⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46428311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8206 + ... + 12656.

It is an arithmetic number, because the mean of its divisors is an integer number (2990260).

Almost surely, 2^46428381 is an apocalyptic number.

It is an amenable number.

46428381 is a deficient number, since it is larger than the sum of its proper divisors (25337859).

46428381 is a wasteful number, since it uses less digits than its factorization.

46428381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4537 (or 4534 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 46428381 is about 6813.8374650413. The cubic root of 46428381 is about 359.4136055414.

The spelling of 46428381 in words is "forty-six million, four hundred twenty-eight thousand, three hundred eighty-one".