398702296 has 8 divisors (see below), whose sum is σ = 747566820. Its totient is φ = 199351144.

The previous prime is 398702287. The next prime is 398702303. The reversal of 398702296 is 692207893.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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, 24918886 + ... + 24918901.

Almost surely, 2^398702296 is an apocalyptic number.

It is an amenable number.

398702296 is a deficient number, since it is larger than the sum of its proper divisors (348864524).

398702296 is a wasteful number, since it uses less digits than its factorization.

398702296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49837793 (or 49837789 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 398702296 is about 19967.5310441727. The cubic root of 398702296 is about 736.0086394307.

The spelling of 398702296 in words is "three hundred ninety-eight million, seven hundred two thousand, two hundred ninety-six".