397260144 has 60 divisors (see below), whose sum is σ = 1137649656. Its totient is φ = 129338496.

The previous prime is 397260137. The next prime is 397260173. The reversal of 397260144 is 441062793.

397260144 is a `hidden beast` number, since 3 + 9 + 7 + 2 + 601 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 397260099 and 397260108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25887 + ... + 38270.

Almost surely, 2^397260144 is an apocalyptic number.

It is an amenable number.

397260144 is an abundant number, since it is smaller than the sum of its proper divisors (740389512).

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

397260144 is a wasteful number, since it uses less digits than its factorization.

397260144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64214 (or 64205 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 397260144 is about 19931.3859026411. The cubic root of 397260144 is about 735.1201580592.

The spelling of 397260144 in words is "three hundred ninety-seven million, two hundred sixty thousand, one hundred forty-four".