401025534 has 32 divisors (see below), whose sum is σ = 987141120. Its totient is φ = 105764832.

The previous prime is 401025511. The next prime is 401025553. The reversal of 401025534 is 435520104.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366694 + ... + 367785.

It is an arithmetic number, because the mean of its divisors is an integer number (30848160).

Almost surely, 2^401025534 is an apocalyptic number.

401025534 is an abundant number, since it is smaller than the sum of its proper divisors (586115586).

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

401025534 is a wasteful number, since it uses less digits than its factorization.

401025534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734504.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 401025534 is about 20025.6219379074. The cubic root of 401025534 is about 737.4354456184.

Adding to 401025534 its reverse (435520104), we get a palindrome (836545638).

The spelling of 401025534 in words is "four hundred one million, twenty-five thousand, five hundred thirty-four".