400247098 has 4 divisors (see below), whose sum is σ = 600370650. Its totient is φ = 200123548.

The previous prime is 400247077. The next prime is 400247137. The reversal of 400247098 is 890742004.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 314814049 + 85433049 = 17743^2 + 9243^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100061773 + ... + 100061776.

Almost surely, 2^400247098 is an apocalyptic number.

400247098 is a deficient number, since it is larger than the sum of its proper divisors (200123552).

400247098 is a wasteful number, since it uses less digits than its factorization.

400247098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200123551.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 400247098 is about 20006.1764962723. The cubic root of 400247098 is about 736.9579879667.

The spelling of 400247098 in words is "four hundred million, two hundred forty-seven thousand, ninety-eight".