401571948 has 24 divisors (see below), whose sum is σ = 956938752. Its totient is φ = 131009104.

The previous prime is 401571941. The next prime is 401571979. The reversal of 401571948 is 849175104.

It is a super-2 number, since 2×401571948² = 322520058841029408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401571941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355440 + ... + 356567.

It is an arithmetic number, because the mean of its divisors is an integer number (39872448).

Almost surely, 2^401571948 is an apocalyptic number.

It is an amenable number.

401571948 is an abundant number, since it is smaller than the sum of its proper divisors (555366804).

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

401571948 is a wasteful number, since it uses less digits than its factorization.

401571948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712061 (or 712059 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 401571948 is about 20039.2601659842. The cubic root of 401571948 is about 737.7702224560.

The spelling of 401571948 in words is "four hundred one million, five hundred seventy-one thousand, nine hundred forty-eight".