400112719 has 4 divisors (see below), whose sum is σ = 400156720. Its totient is φ = 400068720.

The previous prime is 400112707. The next prime is 400112723. The reversal of 400112719 is 917211004.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 400112719 - 2⁷ = 400112591 is a prime.

It is a super-2 number, since 2×400112719² = 320180375811145922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400112693 and 400112702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400112749) 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, 2739 + ... + 28420.

It is an arithmetic number, because the mean of its divisors is an integer number (100039180).

Almost surely, 2^400112719 is an apocalyptic number.

400112719 is a deficient number, since it is larger than the sum of its proper divisors (44001).

400112719 is a wasteful number, since it uses less digits than its factorization.

400112719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44000.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 400112719 is about 20002.8177765034. The cubic root of 400112719 is about 736.8755032858.

The spelling of 400112719 in words is "four hundred million, one hundred twelve thousand, seven hundred nineteen".