43155030 has 16 divisors (see below), whose sum is σ = 103572144. Its totient is φ = 11508000.

The previous prime is 43155011. The next prime is 43155037. The reversal of 43155030 is 3055134.

It is a super-2 number, since 2×43155030² = 3724713228601800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43154988 and 43155006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43155037) 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, 719221 + ... + 719280.

It is an arithmetic number, because the mean of its divisors is an integer number (6473259).

Almost surely, 2^43155030 is an apocalyptic number.

43155030 is an abundant number, since it is smaller than the sum of its proper divisors (60417114).

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

43155030 is a wasteful number, since it uses less digits than its factorization.

43155030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438511.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 43155030 is about 6569.2488155039. The cubic root of 43155030 is about 350.7603334643.

The spelling of 43155030 in words is "forty-three million, one hundred fifty-five thousand, thirty".