401719497 has 16 divisors (see below), whose sum is σ = 539864640. Its totient is φ = 265701312.

The previous prime is 401719457. The next prime is 401719499. The reversal of 401719497 is 794917104.

It is not a de Polignac number, because 401719497 - 2⁶ = 401719433 is a prime.

It is a super-2 number, since 2×401719497² = 322757108539866018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401719499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457623 + ... + 458499.

It is an arithmetic number, because the mean of its divisors is an integer number (33741540).

Almost surely, 2^401719497 is an apocalyptic number.

It is an amenable number.

401719497 is a deficient number, since it is larger than the sum of its proper divisors (138145143).

401719497 is a wasteful number, since it uses less digits than its factorization.

401719497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 401719497 is about 20042.9413260629. The cubic root of 401719497 is about 737.8605706733.

The spelling of 401719497 in words is "four hundred one million, seven hundred nineteen thousand, four hundred ninety-seven".