400020410 has 8 divisors (see below), whose sum is σ = 720036756. Its totient is φ = 160008160.

The previous prime is 400020407. The next prime is 400020427. The reversal of 400020410 is 14020004.

It can be written as a sum of positive squares in 2 ways, for example, as 367450561 + 32569849 = 19169^2 + 5707^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 400020391 and 400020400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20001011 + ... + 20001030.

Almost surely, 2^400020410 is an apocalyptic number.

400020410 is a deficient number, since it is larger than the sum of its proper divisors (320016346).

400020410 is a wasteful number, since it uses less digits than its factorization.

400020410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40002048.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 400020410 is about 20000.5102434913. The cubic root of 400020410 is about 736.8188313621.

Adding to 400020410 its reverse (14020004), we get a palindrome (414040414).

The spelling of 400020410 in words is "four hundred million, twenty thousand, four hundred ten".