22729134 has 16 divisors (see below), whose sum is σ = 46081872. Its totient is φ = 7472448.

The previous prime is 22729123. The next prime is 22729151. The reversal of 22729134 is 43192722.

It is a super-2 number, since 2×22729134² = 1033227064779912, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25509 + ... + 26384.

It is an arithmetic number, because the mean of its divisors is an integer number (2880117).

Almost surely, 2^22729134 is an apocalyptic number.

22729134 is an abundant number, since it is smaller than the sum of its proper divisors (23352738).

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

22729134 is a wasteful number, since it uses less digits than its factorization.

22729134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51971.

The product of its digits is 6048, while the sum is 30.

The square root of 22729134 is about 4767.5081541619. The cubic root of 22729134 is about 283.2658998306.

The spelling of 22729134 in words is "twenty-two million, seven hundred twenty-nine thousand, one hundred thirty-four".