400803011 has 4 divisors (see below), whose sum is σ = 458060592. Its totient is φ = 343545432.

The previous prime is 400802959. The next prime is 400803019. The reversal of 400803011 is 110308004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400803011 - 2⁶ = 400802947 is a prime.

It is a super-2 number, since 2×400803011² = 321286107253332242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400803019) 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, 28628780 + ... + 28628793.

It is an arithmetic number, because the mean of its divisors is an integer number (114515148).

Almost surely, 2^400803011 is an apocalyptic number.

400803011 is a deficient number, since it is larger than the sum of its proper divisors (57257581).

400803011 is an equidigital number, since it uses as much as digits as its factorization.

400803011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57257580.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 400803011 is about 20020.0652096840. The cubic root of 400803011 is about 737.2990231261.

The spelling of 400803011 in words is "four hundred million, eight hundred three thousand, eleven".