398741051 has 4 divisors (see below), whose sum is σ = 398830032. Its totient is φ = 398652072.

The previous prime is 398741033. The next prime is 398741071. The reversal of 398741051 is 150147893.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398741051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 398740996 and 398741014.

It is not an unprimeable number, because it can be changed into a prime (398741071) 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, 37391 + ... + 46856.

It is an arithmetic number, because the mean of its divisors is an integer number (99707508).

Almost surely, 2^398741051 is an apocalyptic number.

398741051 is a deficient number, since it is larger than the sum of its proper divisors (88981).

398741051 is an equidigital number, since it uses as much as digits as its factorization.

398741051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88980.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 398741051 is about 19968.5014710669. The cubic root of 398741051 is about 736.0324860375.

The spelling of 398741051 in words is "three hundred ninety-eight million, seven hundred forty-one thousand, fifty-one".