46851840 has 324 divisors, whose sum is σ = 190840104. Its totient is φ = 10579968.

The previous prime is 46851829. The next prime is 46851859. The reversal of 46851840 is 4815864.

It is a super-2 number, since 2×46851840² = 4390189822771200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 46851795 and 46851804.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 564439 + ... + 564521.

Almost surely, 2^46851840 is an apocalyptic number.

46851840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46851840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95420052).

46851840 is an abundant number, since it is smaller than the sum of its proper divisors (143988264).

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

46851840 is a wasteful number, since it uses less digits than its factorization.

46851840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 46851840 is about 6844.8403925877. The cubic root of 46851840 is about 360.5030005720.

The spelling of 46851840 in words is "forty-six million, eight hundred fifty-one thousand, eight hundred forty".