22476421 has 8 divisors (see below), whose sum is σ = 25365600. Its totient is φ = 19728240.

The previous prime is 22476413. The next prime is 22476523. The reversal of 22476421 is 12467422.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22476421 - 2³ = 22476413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22476421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22476721) 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, 34911 + ... + 35548.

It is an arithmetic number, because the mean of its divisors is an integer number (3170700).

Almost surely, 2^22476421 is an apocalyptic number.

It is an amenable number.

22476421 is a deficient number, since it is larger than the sum of its proper divisors (2889179).

22476421 is a wasteful number, since it uses less digits than its factorization.

22476421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70499.

The product of its digits is 5376, while the sum is 28.

The square root of 22476421 is about 4740.9303939206. The cubic root of 22476421 is about 282.2121578023.

It can be divided in two parts, 224764 and 21, that added together give a triangular number (224785 = T₆₇₀).

The spelling of 22476421 in words is "twenty-two million, four hundred seventy-six thousand, four hundred twenty-one".