400247419 has 8 divisors (see below), whose sum is σ = 470220912. Its totient is φ = 335871840.

The previous prime is 400247411. The next prime is 400247423. The reversal of 400247419 is 914742004.

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 400247419 - 2³ = 400247411 is a prime.

It is a super-2 number, since 2×400247419² = 320395992832323122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400247411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1399324 + ... + 1399609.

It is an arithmetic number, because the mean of its divisors is an integer number (58777614).

Almost surely, 2^400247419 is an apocalyptic number.

400247419 is a deficient number, since it is larger than the sum of its proper divisors (69973493).

400247419 is a wasteful number, since it uses less digits than its factorization.

400247419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798957.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 400247419 is about 20006.1845187932. The cubic root of 400247419 is about 736.9581849812.

The spelling of 400247419 in words is "four hundred million, two hundred forty-seven thousand, four hundred nineteen".