398952235 has 16 divisors (see below), whose sum is σ = 522669312. Its totient is φ = 289922400.

The previous prime is 398952233. The next prime is 398952251. The reversal of 398952235 is 532259893.

It is a happy number.

It is not a de Polignac number, because 398952235 - 2¹ = 398952233 is a prime.

It is a super-2 number, since 2×398952235² = 318325771622990450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (398952233) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 108802 + ... + 112408.

It is an arithmetic number, because the mean of its divisors is an integer number (32666832).

Almost surely, 2^398952235 is an apocalyptic number.

398952235 is a deficient number, since it is larger than the sum of its proper divisors (123717077).

398952235 is a wasteful number, since it uses less digits than its factorization.

398952235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634.

The product of its digits is 583200, while the sum is 46.

The square root of 398952235 is about 19973.7886991927. The cubic root of 398952235 is about 736.1624039803.

The spelling of 398952235 in words is "three hundred ninety-eight million, nine hundred fifty-two thousand, two hundred thirty-five".