23051406 has 16 divisors (see below), whose sum is σ = 52689024. Its totient is φ = 6586104.

The previous prime is 23051401. The next prime is 23051423. The reversal of 23051406 is 60415032.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23051401) 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, 274380 + ... + 274463.

It is an arithmetic number, because the mean of its divisors is an integer number (3293064).

Almost surely, 2^23051406 is an apocalyptic number.

23051406 is an abundant number, since it is smaller than the sum of its proper divisors (29637618).

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

23051406 is a wasteful number, since it uses less digits than its factorization.

23051406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548855.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 23051406 is about 4801.1879779904. The cubic root of 23051406 is about 284.5984125445.

Adding to 23051406 its reverse (60415032), we get a palindrome (83466438).

The spelling of 23051406 in words is "twenty-three million, fifty-one thousand, four hundred six".