434428518 has 16 divisors (see below), whose sum is σ = 871997040. Its totient is φ = 144286176.

The previous prime is 434428487. The next prime is 434428549. The reversal of 434428518 is 815824434.

It is an interprime number because it is at equal distance from previous prime (434428487) and next prime (434428549).

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, 129033 + ... + 132356.

It is an arithmetic number, because the mean of its divisors is an integer number (54499815).

Almost surely, 2^434428518 is an apocalyptic number.

434428518 is an abundant number, since it is smaller than the sum of its proper divisors (437568522).

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

434428518 is a wasteful number, since it uses less digits than its factorization.

434428518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261671.

The product of its digits is 122880, while the sum is 39.

The square root of 434428518 is about 20842.9488796571. The cubic root of 434428518 is about 757.3665305260.

The spelling of 434428518 in words is "four hundred thirty-four million, four hundred twenty-eight thousand, five hundred eighteen".