310020397 has 8 divisors (see below), whose sum is σ = 331869600. Its totient is φ = 288724464.

The previous prime is 310020383. The next prime is 310020407. The reversal of 310020397 is 793020013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 310020397 - 2¹¹ = 310018349 is a prime.

It is a super-2 number, since 2×310020397² = 192225293112075218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310020317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137158 + ... + 139399.

It is an arithmetic number, because the mean of its divisors is an integer number (41483700).

Almost surely, 2^310020397 is an apocalyptic number.

It is an amenable number.

310020397 is a deficient number, since it is larger than the sum of its proper divisors (21849203).

310020397 is a wasteful number, since it uses less digits than its factorization.

310020397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276635.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 310020397 is about 17607.3960880080. The cubic root of 310020397 is about 676.8047884169.

The spelling of 310020397 in words is "three hundred ten million, twenty thousand, three hundred ninety-seven".