434721740 has 24 divisors (see below), whose sum is σ = 921452112. Its totient is φ = 172262720.

The previous prime is 434721737. The next prime is 434721751. The reversal of 434721740 is 47127434.

It is a junction number, because it is equal to n+sod(n) for n = 434721697 and 434721706.

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, 99431 + ... + 103710.

It is an arithmetic number, because the mean of its divisors is an integer number (38393838).

Almost surely, 2^434721740 is an apocalyptic number.

It is an amenable number.

434721740 is an abundant number, since it is smaller than the sum of its proper divisors (486730372).

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

434721740 is a wasteful number, since it uses less digits than its factorization.

434721740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203257 (or 203255 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 434721740 is about 20849.9817745724. The cubic root of 434721740 is about 757.5368896484.

The spelling of 434721740 in words is "four hundred thirty-four million, seven hundred twenty-one thousand, seven hundred forty".