398550470 has 32 divisors (see below), whose sum is σ = 725953536. Its totient is φ = 157528800.

The previous prime is 398550437. The next prime is 398550491. The reversal of 398550470 is 74055893.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401675 + ... + 402665.

It is an arithmetic number, because the mean of its divisors is an integer number (22686048).

Almost surely, 2^398550470 is an apocalyptic number.

398550470 is a deficient number, since it is larger than the sum of its proper divisors (327403066).

398550470 is a wasteful number, since it uses less digits than its factorization.

398550470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 398550470 is about 19963.7288601103. The cubic root of 398550470 is about 735.9152034376.

The spelling of 398550470 in words is "three hundred ninety-eight million, five hundred fifty thousand, four hundred seventy".