401269899 has 8 divisors (see below), whose sum is σ = 539111232. Its totient is φ = 265470920.

The previous prime is 401269871. The next prime is 401269903. The reversal of 401269899 is 998962104.

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 401269899 - 2⁸ = 401269643 is a prime.

It is a super-2 number, since 2×401269899² = 322035063686940402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401261899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510129 + ... + 510914.

It is an arithmetic number, because the mean of its divisors is an integer number (67388904).

Almost surely, 2^401269899 is an apocalyptic number.

401269899 is a deficient number, since it is larger than the sum of its proper divisors (137841333).

401269899 is a wasteful number, since it uses less digits than its factorization.

401269899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021177.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 401269899 is about 20031.7223173645. The cubic root of 401269899 is about 737.5852006901.

The spelling of 401269899 in words is "four hundred one million, two hundred sixty-nine thousand, eight hundred ninety-nine".