46149220 has 96 divisors (see below), whose sum is σ = 113164128. Its totient is φ = 15654912.

The previous prime is 46149217. The next prime is 46149221. The reversal of 46149220 is 2294164.

It can be written as a sum of positive squares in 16 ways, for example, as 262144 + 45887076 = 512^2 + 6774^2 .

It is not an unprimeable number, because it can be changed into a prime (46149221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234162 + ... + 234358.

It is an arithmetic number, because the mean of its divisors is an integer number (1178793).

Almost surely, 2^46149220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46149220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56582064).

46149220 is an abundant number, since it is smaller than the sum of its proper divisors (67014908).

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

46149220 is a wasteful number, since it uses less digits than its factorization.

46149220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 46149220 is about 6793.3217206312. The cubic root of 46149220 is about 358.6918054423.

The spelling of 46149220 in words is "forty-six million, one hundred forty-nine thousand, two hundred twenty".