398626241 has 16 divisors (see below), whose sum is σ = 444326400. Its totient is φ = 355138560.

The previous prime is 398626237. The next prime is 398626247. The reversal of 398626241 is 142626893.

It is a cyclic number.

It is not a de Polignac number, because 398626241 - 2² = 398626237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398626247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179846 + ... + 182048.

It is an arithmetic number, because the mean of its divisors is an integer number (27770400).

Almost surely, 2^398626241 is an apocalyptic number.

398626241 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

398626241 is a deficient number, since it is larger than the sum of its proper divisors (45700159).

398626241 is a wasteful number, since it uses less digits than its factorization.

398626241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696.

The product of its digits is 124416, while the sum is 41.

The square root of 398626241 is about 19965.6264865393. The cubic root of 398626241 is about 735.9618370109.

The spelling of 398626241 in words is "three hundred ninety-eight million, six hundred twenty-six thousand, two hundred forty-one".