397750134 has 16 divisors (see below), whose sum is σ = 808542000. Its totient is φ = 130409760.

The previous prime is 397750127. The next prime is 397750183. The reversal of 397750134 is 431057793.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 397750092 and 397750101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543009 + ... + 543740.

It is an arithmetic number, because the mean of its divisors is an integer number (50533875).

Almost surely, 2^397750134 is an apocalyptic number.

397750134 is an abundant number, since it is smaller than the sum of its proper divisors (410791866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397750134 is a wasteful number, since it uses less digits than its factorization.

397750134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086815.

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 397750134 is about 19943.6740346407. The cubic root of 397750134 is about 735.4222720428.

The spelling of 397750134 in words is "three hundred ninety-seven million, seven hundred fifty thousand, one hundred thirty-four".