401231040 has 112 divisors (see below), whose sum is σ = 1455919872. Its totient is φ = 91708416.

The previous prime is 401231029. The next prime is 401231053. The reversal of 401231040 is 40132104.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23134 + ... + 36573.

Almost surely, 2^401231040 is an apocalyptic number.

401231040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401231040 is an abundant number, since it is smaller than the sum of its proper divisors (1054688832).

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

401231040 is a wasteful number, since it uses less digits than its factorization.

401231040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59734 (or 59724 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 401231040 is about 20030.7523573130. The cubic root of 401231040 is about 737.5613906571.

Adding to 401231040 its reverse (40132104), we get a palindrome (441363144).

The spelling of 401231040 in words is "four hundred one million, two hundred thirty-one thousand, forty".