397383742 has 24 divisors (see below), whose sum is σ = 712148976. Its totient is φ = 162899616.

The previous prime is 397383739. The next prime is 397383751. The reversal of 397383742 is 247383793.

It is a super-3 number, since 3×397383742³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 397383692 and 397383701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19423 + ... + 34234.

It is an arithmetic number, because the mean of its divisors is an integer number (29672874).

Almost surely, 2^397383742 is an apocalyptic number.

397383742 is a deficient number, since it is larger than the sum of its proper divisors (314765234).

397383742 is a wasteful number, since it uses less digits than its factorization.

397383742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53712 (or 53689 counting only the distinct ones).

The product of its digits is 762048, while the sum is 46.

The square root of 397383742 is about 19934.4862487098. The cubic root of 397383742 is about 735.1963885103.

The spelling of 397383742 in words is "three hundred ninety-seven million, three hundred eighty-three thousand, seven hundred forty-two".