401078069 has 4 divisors (see below), whose sum is σ = 458374944. Its totient is φ = 343781196.

The previous prime is 401078063. The next prime is 401078107. The reversal of 401078069 is 960870104.

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 401078069 - 2⁴ = 401078053 is a prime.

It is a super-2 number, since 2×401078069² = 321727234865537522, 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 (401078063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28648427 + ... + 28648440.

It is an arithmetic number, because the mean of its divisors is an integer number (114593736).

Almost surely, 2^401078069 is an apocalyptic number.

It is an amenable number.

401078069 is a deficient number, since it is larger than the sum of its proper divisors (57296875).

401078069 is an equidigital number, since it uses as much as digits as its factorization.

401078069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57296874.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 401078069 is about 20026.9335895439. The cubic root of 401078069 is about 737.4676459617.

The spelling of 401078069 in words is "four hundred one million, seventy-eight thousand, sixty-nine".