404154043 has 4 divisors (see below), whose sum is σ = 404293048. Its totient is φ = 404015040.

The previous prime is 404154029. The next prime is 404154053. The reversal of 404154043 is 340451404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404154043 - 2⁹ = 404153531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404153999 and 404154017.

It is not an unprimeable number, because it can be changed into a prime (404154013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65046 + ... + 70987.

It is an arithmetic number, because the mean of its divisors is an integer number (101073262).

Almost surely, 2^404154043 is an apocalyptic number.

404154043 is a deficient number, since it is larger than the sum of its proper divisors (139005).

404154043 is a wasteful number, since it uses less digits than its factorization.

404154043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139004.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 404154043 is about 20103.5828398820. The cubic root of 404154043 is about 739.3481250963.

The spelling of 404154043 in words is "four hundred four million, one hundred fifty-four thousand, forty-three".