46405521 has 8 divisors (see below), whose sum is σ = 68748960. Its totient is φ = 30936996.

The previous prime is 46405519. The next prime is 46405523. The reversal of 46405521 is 12550464.

It is an interprime number because it is at equal distance from previous prime (46405519) and next prime (46405523).

It is not a de Polignac number, because 46405521 - 2¹ = 46405519 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1718723 = 46405521 / (4 + 6 + 4 + 0 + 5 + 5 + 2 + 1).

It is not an unprimeable number, because it can be changed into a prime (46405523) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 859335 + ... + 859388.

It is an arithmetic number, because the mean of its divisors is an integer number (8593620).

Almost surely, 2^46405521 is an apocalyptic number.

It is an amenable number.

46405521 is a deficient number, since it is larger than the sum of its proper divisors (22343439).

46405521 is a wasteful number, since it uses less digits than its factorization.

46405521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718732 (or 1718726 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 46405521 is about 6812.1597896702. The cubic root of 46405521 is about 359.3546075486.

Adding to 46405521 its reverse (12550464), we get a palindrome (58955985).

The spelling of 46405521 in words is "forty-six million, four hundred five thousand, five hundred twenty-one".