401534655 has 8 divisors (see below), whose sum is σ = 642455472. Its totient is φ = 214151808.

The previous prime is 401534647. The next prime is 401534663. The reversal of 401534655 is 556435104.

It is an interprime number because it is at equal distance from previous prime (401534647) and next prime (401534663).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 401534655 - 2³ = 401534647 is a prime.

It is a super-2 number, since 2×401534655² = 322460158331938050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13384474 + ... + 13384503.

It is an arithmetic number, because the mean of its divisors is an integer number (80306934).

Almost surely, 2^401534655 is an apocalyptic number.

401534655 is a deficient number, since it is larger than the sum of its proper divisors (240920817).

401534655 is a wasteful number, since it uses less digits than its factorization.

401534655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26768985.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 401534655 is about 20038.3296459560. The cubic root of 401534655 is about 737.7473834465.

Adding to 401534655 its reverse (556435104), we get a palindrome (957969759).

The spelling of 401534655 in words is "four hundred one million, five hundred thirty-four thousand, six hundred fifty-five".