534431640 has 64 divisors (see below), whose sum is σ = 1606924800. Its totient is φ = 142192512.

The previous prime is 534431629. The next prime is 534431713. The reversal of 534431640 is 46134435.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 534431598 and 534431607.

It is a congruent 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, 50751 + ... + 60369.

It is an arithmetic number, because the mean of its divisors is an integer number (25108200).

Almost surely, 2^534431640 is an apocalyptic number.

It is an amenable number.

534431640 is an abundant number, since it is smaller than the sum of its proper divisors (1072493160).

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

534431640 is a wasteful number, since it uses less digits than its factorization.

534431640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10096 (or 10092 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 534431640 is about 23117.7775748449. Note that the first 3 decimals coincide. The cubic root of 534431640 is about 811.5165613034.

The spelling of 534431640 in words is "five hundred thirty-four million, four hundred thirty-one thousand, six hundred forty".