398606345460 has 96 divisors (see below), whose sum is σ = 1305377539200. Its totient is φ = 100700547840.

The previous prime is 398606345443. The next prime is 398606345477. The reversal of 398606345460 is 64543606893.

398606345460 is a `hidden beast` number, since 3 + 9 + 8 + 60 + 6 + 34 + 546 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (398606345443) and next prime (398606345477).

It is a super-2 number, since 2×398606345460² (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 junction number, because it is equal to n+sod(n) for n = 398606345397 and 398606345406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19415001 + ... + 19435520.

It is an arithmetic number, because the mean of its divisors is an integer number (13597682700).

Almost surely, 2^398606345460 is an apocalyptic number.

398606345460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

398606345460 is an abundant number, since it is smaller than the sum of its proper divisors (906771193740).

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

398606345460 is a wasteful number, since it uses less digits than its factorization.

398606345460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38850558 (or 38850550 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 398606345460 in words is "three hundred ninety-eight billion, six hundred six million, three hundred forty-five thousand, four hundred sixty".