401345497 has 4 divisors (see below), whose sum is σ = 458680576. Its totient is φ = 344010420.

The previous prime is 401345491. The next prime is 401345507. The reversal of 401345497 is 794543104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401345497 - 2³ = 401345489 is a prime.

It is a super-2 number, since 2×401345497² = 322156415924354018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401345491) 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 3 ways as a sum of consecutive naturals, for example, 28667529 + ... + 28667542.

It is an arithmetic number, because the mean of its divisors is an integer number (114670144).

Almost surely, 2^401345497 is an apocalyptic number.

It is an amenable number.

401345497 is a deficient number, since it is larger than the sum of its proper divisors (57335079).

401345497 is an equidigital number, since it uses as much as digits as its factorization.

401345497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57335078.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 401345497 is about 20033.6091855661. The cubic root of 401345497 is about 737.6315173669.

The spelling of 401345497 in words is "four hundred one million, three hundred forty-five thousand, four hundred ninety-seven".