401013432 has 48 divisors (see below), whose sum is σ = 1087047000. Its totient is φ = 133551936.

The previous prime is 401013407. The next prime is 401013461. The reversal of 401013432 is 234310104.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121419 + ... + 124677.

Almost surely, 2^401013432 is an apocalyptic number.

It is an amenable number.

401013432 is an abundant number, since it is smaller than the sum of its proper divisors (686033568).

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

401013432 is a wasteful number, since it uses less digits than its factorization.

401013432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4980 (or 4973 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 401013432 is about 20025.3197727277. The cubic root of 401013432 is about 737.4280275259.

Adding to 401013432 its reverse (234310104), we get a palindrome (635323536).

The spelling of 401013432 in words is "four hundred one million, thirteen thousand, four hundred thirty-two".