401201610 has 32 divisors (see below), whose sum is σ = 985279680. Its totient is φ = 104498688.

The previous prime is 401201609. The next prime is 401201611. The reversal of 401201610 is 16102104.

It is an interprime number because it is at equal distance from previous prime (401201609) and next prime (401201611).

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 401201610.

It is not an unprimeable number, because it can be changed into a prime (401201611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154215 + ... + 156794.

It is an arithmetic number, because the mean of its divisors is an integer number (30789990).

Almost surely, 2^401201610 is an apocalyptic number.

401201610 is an abundant number, since it is smaller than the sum of its proper divisors (584078070).

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

401201610 is a wasteful number, since it uses less digits than its factorization.

401201610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311062.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 401201610 is about 20030.0177234070. The cubic root of 401201610 is about 737.5433570220.

Adding to 401201610 its reverse (16102104), we get a palindrome (417303714).

The spelling of 401201610 in words is "four hundred one million, two hundred one thousand, six hundred ten".