21462034 has 16 divisors (see below), whose sum is σ = 35328960. Its totient is φ = 9697360.

The previous prime is 21462029. The next prime is 21462037. The reversal of 21462034 is 43026412.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 21461996 and 21462014.

It is not an unprimeable number, because it can be changed into a prime (21462037) 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, 987 + ... + 6625.

It is an arithmetic number, because the mean of its divisors is an integer number (2208060).

Almost surely, 2^21462034 is an apocalyptic number.

21462034 is a deficient number, since it is larger than the sum of its proper divisors (13866926).

21462034 is a wasteful number, since it uses less digits than its factorization.

21462034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5825.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 21462034 is about 4632.7134597339. The cubic root of 21462034 is about 277.9011172916.

Adding to 21462034 its reverse (43026412), we get a palindrome (64488446).

The spelling of 21462034 in words is "twenty-one million, four hundred sixty-two thousand, thirty-four".