156443434 has 16 divisors (see below), whose sum is σ = 268364736. Its totient is φ = 67003200.

The previous prime is 156443431. The next prime is 156443471. The reversal of 156443434 is 434344651.

It is a self number, because there is not a number n which added to its sum of digits gives 156443434.

It is not an unprimeable number, because it can be changed into a prime (156443431) 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, 27669 + ... + 32839.

It is an arithmetic number, because the mean of its divisors is an integer number (16772796).

Almost surely, 2^156443434 is an apocalyptic number.

156443434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

156443434 is a deficient number, since it is larger than the sum of its proper divisors (111921302).

156443434 is a wasteful number, since it uses less digits than its factorization.

156443434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7341.

The product of its digits is 69120, while the sum is 34.

The square root of 156443434 is about 12507.7349668115. The cubic root of 156443434 is about 538.8308426765.

The spelling of 156443434 in words is "one hundred fifty-six million, four hundred forty-three thousand, four hundred thirty-four".