401000554 has 4 divisors (see below), whose sum is σ = 601500834. Its totient is φ = 200500276.

The previous prime is 401000549. The next prime is 401000557. The reversal of 401000554 is 455000104.

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

It can be written as a sum of positive squares in only one way, i.e., 278389225 + 122611329 = 16685^2 + 11073^2 .

It is not an unprimeable number, because it can be changed into a prime (401000557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100250137 + ... + 100250140.

Almost surely, 2^401000554 is an apocalyptic number.

401000554 is a deficient number, since it is larger than the sum of its proper divisors (200500280).

401000554 is a wasteful number, since it uses less digits than its factorization.

401000554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200500279.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 401000554 is about 20024.9982272159. The cubic root of 401000554 is about 737.4201336093.

Adding to 401000554 its reverse (455000104), we get a palindrome (856000658).

The spelling of 401000554 in words is "four hundred one million, five hundred fifty-four", and thus it is an aban number.