397448703072 has 60 divisors (see below), whose sum is σ = 1168885603116. Its totient is φ = 132482900160.

The previous prime is 397448703061. The next prime is 397448703077. The reversal of 397448703072 is 270307844793.

397448703072 is a `hidden beast` number, since 3 + 97 + 4 + 487 + 0 + 3 + 0 + 72 = 666.

It is a super-2 number, since 2×397448703072² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397448703077) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 76665754 + ... + 76670937.

Almost surely, 2^397448703072 is an apocalyptic number.

397448703072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

397448703072 is an abundant number, since it is smaller than the sum of its proper divisors (771436900044).

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

397448703072 is a wasteful number, since it uses less digits than its factorization.

397448703072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153336713 (or 153336696 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 54.

The spelling of 397448703072 in words is "three hundred ninety-seven billion, four hundred forty-eight million, seven hundred three thousand, seventy-two".