401690793 has 8 divisors (see below), whose sum is σ = 612100288. Its totient is φ = 229537584.

The previous prime is 401690771. The next prime is 401690797. The reversal of 401690793 is 397096104.

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

It is not a de Polignac number, because 401690793 - 2¹⁷ = 401559721 is a prime.

It is a super-2 number, since 2×401690793² = 322710986361937698, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (401690797) 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, 9564046 + ... + 9564087.

It is an arithmetic number, because the mean of its divisors is an integer number (76512536).

Almost surely, 2^401690793 is an apocalyptic number.

It is an amenable number.

401690793 is a deficient number, since it is larger than the sum of its proper divisors (210409495).

401690793 is a wasteful number, since it uses less digits than its factorization.

401690793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19128143.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 401690793 is about 20042.2252507051. The cubic root of 401690793 is about 737.8429961763.

The spelling of 401690793 in words is "four hundred one million, six hundred ninety thousand, seven hundred ninety-three".