46228640 has 24 divisors (see below), whose sum is σ = 109215540. Its totient is φ = 18491392.

The previous prime is 46228631. The next prime is 46228669. The reversal of 46228640 is 4682264.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43930384 + 2298256 = 6628^2 + 1516^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 46228597 and 46228606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144305 + ... + 144624.

Almost surely, 2^46228640 is an apocalyptic number.

46228640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46228640 is an abundant number, since it is smaller than the sum of its proper divisors (62986900).

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

46228640 is a wasteful number, since it uses less digits than its factorization.

46228640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288944 (or 288936 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 46228640 is about 6799.1646545734. The cubic root of 46228640 is about 358.8974497786.

The spelling of 46228640 in words is "forty-six million, two hundred twenty-eight thousand, six hundred forty".