401119781 has 8 divisors (see below), whose sum is σ = 414288864. Its totient is φ = 388125360.

The previous prime is 401119699. The next prime is 401119841. The reversal of 401119781 is 187911104.

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 401119781 - 2¹⁴ = 401103397 is a prime.

It is a super-2 number, since 2×401119781² = 321794157418975922, 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 (401119181) 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, 38990 + ... + 48191.

It is an arithmetic number, because the mean of its divisors is an integer number (51786108).

Almost surely, 2^401119781 is an apocalyptic number.

It is an amenable number.

401119781 is a deficient number, since it is larger than the sum of its proper divisors (13169083).

401119781 is a wasteful number, since it uses less digits than its factorization.

401119781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87331.

The product of its (nonzero) digits is 2016, while the sum is 32.

The square root of 401119781 is about 20027.9749600403. The cubic root of 401119781 is about 737.4932105475.

The spelling of 401119781 in words is "four hundred one million, one hundred nineteen thousand, seven hundred eighty-one".