398801533 has 32 divisors (see below), whose sum is σ = 461583360. Its totient is φ = 341886720.

The previous prime is 398801527. The next prime is 398801537. The reversal of 398801533 is 335108893.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 398801533 - 2¹³ = 398793341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398801537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1257891 + ... + 1258207.

It is an arithmetic number, because the mean of its divisors is an integer number (14424480).

Almost surely, 2^398801533 is an apocalyptic number.

It is an amenable number.

398801533 is a deficient number, since it is larger than the sum of its proper divisors (62781827).

398801533 is a wasteful number, since it uses less digits than its factorization.

398801533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 398801533 is about 19970.0158487669. The cubic root of 398801533 is about 736.0696985477.

The spelling of 398801533 in words is "three hundred ninety-eight million, eight hundred one thousand, five hundred thirty-three".