434540155 has 16 divisors (see below), whose sum is σ = 609801984. Its totient is φ = 291039840.

The previous prime is 434540137. The next prime is 434540167. The reversal of 434540155 is 551045434.

It is a happy number.

It is not a de Polignac number, because 434540155 - 2⁵ = 434540123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142861 + ... + 145870.

It is an arithmetic number, because the mean of its divisors is an integer number (38112624).

Almost surely, 2^434540155 is an apocalyptic number.

434540155 is a deficient number, since it is larger than the sum of its proper divisors (175261829).

434540155 is a wasteful number, since it uses less digits than its factorization.

434540155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288786.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 434540155 is about 20845.6267595868. The cubic root of 434540155 is about 757.4313995685.

Adding to 434540155 its reverse (551045434), we get a palindrome (985585589).

The spelling of 434540155 in words is "four hundred thirty-four million, five hundred forty thousand, one hundred fifty-five".