22013402 has 8 divisors (see below), whose sum is σ = 34962516. Its totient is φ = 10359232.

The previous prime is 22013399. The next prime is 22013413. The reversal of 22013402 is 20431022.

It can be written as a sum of positive squares in 2 ways, for example, as 22005481 + 7921 = 4691^2 + 89^2 .

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

It is a super-2 number, since 2×22013402² = 969179735227208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323693 + ... + 323760.

Almost surely, 2^22013402 is an apocalyptic number.

22013402 is a deficient number, since it is larger than the sum of its proper divisors (12949114).

22013402 is a wasteful number, since it uses less digits than its factorization.

22013402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647472.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22013402 is about 4691.8442003119. The cubic root of 22013402 is about 280.2608198961.

Adding to 22013402 its reverse (20431022), we get a palindrome (42444424).

The spelling of 22013402 in words is "twenty-two million, thirteen thousand, four hundred two".