400133473 has 12 divisors (see below), whose sum is σ = 414291904. Its totient is φ = 386416800.

The previous prime is 400133453. The next prime is 400133477. The reversal of 400133473 is 374331004.

It is a happy number.

It is not a de Polignac number, because 400133473 - 2¹³ = 400125281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400133477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171988 + ... + 174298.

Almost surely, 2^400133473 is an apocalyptic number.

It is an amenable number.

400133473 is a deficient number, since it is larger than the sum of its proper divisors (14158431).

400133473 is a wasteful number, since it uses less digits than its factorization.

400133473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496 (or 2455 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 400133473 is about 20003.3365466864. The cubic root of 400133473 is about 736.8882437370. Note that the first 3 decimals are identical.

Adding to 400133473 its reverse (374331004), we get a palindrome (774464477).

The spelling of 400133473 in words is "four hundred million, one hundred thirty-three thousand, four hundred seventy-three".