401744047 has 4 divisors (see below), whose sum is σ = 415597320. Its totient is φ = 387890776.

The previous prime is 401744023. The next prime is 401744069. The reversal of 401744047 is 740447104.

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

It is not a de Polignac number, because 401744047 - 2²³ = 393355439 is a prime.

It is a super-2 number, since 2×401744047² = 322796558599876418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401744347) 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, 6926593 + ... + 6926650.

It is an arithmetic number, because the mean of its divisors is an integer number (103899330).

Almost surely, 2^401744047 is an apocalyptic number.

401744047 is a deficient number, since it is larger than the sum of its proper divisors (13853273).

401744047 is a wasteful number, since it uses less digits than its factorization.

401744047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13853272.

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 401744047 is about 20043.5537517677. The cubic root of 401744047 is about 737.8756011512.

The spelling of 401744047 in words is "four hundred one million, seven hundred forty-four thousand, forty-seven".