156445422 has 64 divisors (see below), whose sum is σ = 374298624. Its totient is φ = 42658560.

The previous prime is 156445417. The next prime is 156445439. The reversal of 156445422 is 224544651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79968 + ... + 81900.

It is an arithmetic number, because the mean of its divisors is an integer number (5848416).

Almost surely, 2^156445422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156445422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187149312).

156445422 is an abundant number, since it is smaller than the sum of its proper divisors (217853202).

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

156445422 is a wasteful number, since it uses less digits than its factorization.

156445422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033.

The product of its digits is 38400, while the sum is 33.

The square root of 156445422 is about 12507.8144373827. The cubic root of 156445422 is about 538.8331250588.

The spelling of 156445422 in words is "one hundred fifty-six million, four hundred forty-five thousand, four hundred twenty-two".