33331401 has 24 divisors (see below), whose sum is σ = 50188320. Its totient is φ = 21297600.

The previous prime is 33331399. The next prime is 33331421. The reversal of 33331401 is 10413333.

It is not a de Polignac number, because 33331401 - 2¹ = 33331399 is a prime.

It is a super-2 number, since 2×33331401² = 2221964585245602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33331421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21006 + ... + 22536.

It is an arithmetic number, because the mean of its divisors is an integer number (2091180).

Almost surely, 2^33331401 is an apocalyptic number.

It is an amenable number.

33331401 is a deficient number, since it is larger than the sum of its proper divisors (16856919).

33331401 is a wasteful number, since it uses less digits than its factorization.

33331401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637 (or 1634 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 33331401 is about 5773.3353444954. The cubic root of 33331401 is about 321.8235759240.

Adding to 33331401 its reverse (10413333), we get a palindrome (43744734).

The spelling of 33331401 in words is "thirty-three million, three hundred thirty-one thousand, four hundred one".