331370401 has 4 divisors (see below), whose sum is σ = 332501652. Its totient is φ = 330239152.

The previous prime is 331370387. The next prime is 331370441. The reversal of 331370401 is 104073133.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104073133 = 17 ⋅6121949.

It can be written as a sum of positive squares in 2 ways, for example, as 219010401 + 112360000 = 14799^2 + 10600^2 .

It is a cyclic number.

It is not a de Polignac number, because 331370401 - 2¹³ = 331362209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331370441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565186 + ... + 565771.

It is an arithmetic number, because the mean of its divisors is an integer number (83125413).

Almost surely, 2^331370401 is an apocalyptic number.

It is an amenable number.

331370401 is a deficient number, since it is larger than the sum of its proper divisors (1131251).

331370401 is a wasteful number, since it uses less digits than its factorization.

331370401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131250.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 331370401 is about 18203.5820925443. The cubic root of 331370401 is about 691.9975727192.

The spelling of 331370401 in words is "three hundred thirty-one million, three hundred seventy thousand, four hundred one".