46921420 has 144 divisors (see below), whose sum is σ = 128701440. Its totient is φ = 14224896.

The previous prime is 46921409. The next prime is 46921421. The reversal of 46921420 is 2412964.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (46921421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 369397 + ... + 369523.

It is an arithmetic number, because the mean of its divisors is an integer number (893760).

Almost surely, 2^46921420 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 46921420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64350720).

46921420 is an abundant number, since it is smaller than the sum of its proper divisors (81780020).

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

46921420 is a wasteful number, since it uses less digits than its factorization.

46921420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 183 counting only the distinct ones).

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

The square root of 46921420 is about 6849.9211674296. The cubic root of 46921420 is about 360.6813741545.

The spelling of 46921420 in words is "forty-six million, nine hundred twenty-one thousand, four hundred twenty".