401571573948 has 36 divisors (see below), whose sum is σ = 1024570474200. Its totient is φ = 132606188256.

The previous prime is 401571573817. The next prime is 401571573967. The reversal of 401571573948 is 849375175104.

401571573948 is a `hidden beast` number, since 401 + 57 + 157 + 39 + 4 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×401571573948² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401571573894 and 401571573903.

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, 52121223 + ... + 52128926.

It is an arithmetic number, because the mean of its divisors is an integer number (28460290950).

Almost surely, 2^401571573948 is an apocalyptic number.

It is an amenable number.

401571573948 is an abundant number, since it is smaller than the sum of its proper divisors (622998900252).

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

401571573948 is a wasteful number, since it uses less digits than its factorization.

401571573948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104250266 (or 104250261 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 401571573948 in words is "four hundred one billion, five hundred seventy-one million, five hundred seventy-three thousand, nine hundred forty-eight".