400046000 has 40 divisors (see below), whose sum is σ = 967316064. Its totient is φ = 160017600.

The previous prime is 400045963. The next prime is 400046047. The reversal of 400046000 is 640004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98012 + ... + 102011.

Almost surely, 2^400046000 is an apocalyptic number.

400046000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400046000 is an abundant number, since it is smaller than the sum of its proper divisors (567270064).

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

400046000 is a wasteful number, since it uses less digits than its factorization.

400046000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200046 (or 200030 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 400046000 is about 20001.1499669394. The cubic root of 400046000 is about 736.8345428869.

Adding to 400046000 its reverse (640004), we get a palindrome (400686004).

The spelling of 400046000 in words is "four hundred million, forty-six thousand".