398230741 has 4 divisors (see below), whose sum is σ = 408993772. Its totient is φ = 387467712.

The previous prime is 398230739. The next prime is 398230751. The reversal of 398230741 is 147032893.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 364008241 + 34222500 = 19079^2 + 5850^2 .

It is a cyclic number.

It is not a de Polignac number, because 398230741 - 2¹ = 398230739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 10762993 = 398230741 / (3 + 9 + 8 + 2 + 3 + 0 + 7 + 4 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 398230741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398230751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5381460 + ... + 5381533.

It is an arithmetic number, because the mean of its divisors is an integer number (102248443).

Almost surely, 2^398230741 is an apocalyptic number.

It is an amenable number.

398230741 is a deficient number, since it is larger than the sum of its proper divisors (10763031).

398230741 is a wasteful number, since it uses less digits than its factorization.

398230741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10763030.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 398230741 is about 19955.7195059462. The cubic root of 398230741 is about 735.7183597941.

The spelling of 398230741 in words is "three hundred ninety-eight million, two hundred thirty thousand, seven hundred forty-one".