46649820 has 96 divisors (see below), whose sum is σ = 150796800. Its totient is φ = 10554624.

The previous prime is 46649809. The next prime is 46649821. The reversal of 46649820 is 2894664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46649821) 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, 45271 + ... + 46289.

It is an arithmetic number, because the mean of its divisors is an integer number (1570800).

Almost surely, 2^46649820 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 46649820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75398400).

46649820 is an abundant number, since it is smaller than the sum of its proper divisors (104146980).

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

46649820 is a wasteful number, since it uses less digits than its factorization.

46649820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 46649820 is about 6830.0673495947. The cubic root of 46649820 is about 359.9841042364.

The spelling of 46649820 in words is "forty-six million, six hundred forty-nine thousand, eight hundred twenty".