46400420 has 24 divisors (see below), whose sum is σ = 106299648. Its totient is φ = 16872800.

The previous prime is 46400411. The next prime is 46400423. The reversal of 46400420 is 2400464.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 46400392 and 46400401.

It is not an unprimeable number, because it can be changed into a prime (46400423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105236 + ... + 105675.

It is an arithmetic number, because the mean of its divisors is an integer number (4429152).

Almost surely, 2^46400420 is an apocalyptic number.

It is an amenable number.

46400420 is an abundant number, since it is smaller than the sum of its proper divisors (59899228).

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

46400420 is a wasteful number, since it uses less digits than its factorization.

46400420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210931 (or 210929 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 46400420 is about 6811.7853753623. The cubic root of 46400420 is about 359.3414400419.

Adding to 46400420 its reverse (2400464), we get a palindrome (48800884).

The spelling of 46400420 in words is "forty-six million, four hundred thousand, four hundred twenty".