401801503 has 8 divisors (see below), whose sum is σ = 412004736. Its totient is φ = 391637400.

The previous prime is 401801483. The next prime is 401801507. The reversal of 401801503 is 305108104.

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

It is a cyclic number.

It is not a de Polignac number, because 401801503 - 2⁵ = 401801471 is a prime.

It is a super-2 number, since 2×401801503² = 322888895626118018, 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 (401801507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11598 + ... + 30628.

It is an arithmetic number, because the mean of its divisors is an integer number (51500592).

Almost surely, 2^401801503 is an apocalyptic number.

401801503 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

401801503 is a deficient number, since it is larger than the sum of its proper divisors (10203233).

401801503 is a wasteful number, since it uses less digits than its factorization.

401801503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19565.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 401801503 is about 20044.9869792924. The cubic root of 401801503 is about 737.9107755862.

Adding to 401801503 its reverse (305108104), we get a palindrome (706909607).

The spelling of 401801503 in words is "four hundred one million, eight hundred one thousand, five hundred three".