420752734 has 8 divisors (see below), whose sum is σ = 637256880. Its totient is φ = 208333776.

The previous prime is 420752723. The next prime is 420752741. The reversal of 420752734 is 437257024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 420752734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021039 + ... + 1021450.

It is an arithmetic number, because the mean of its divisors is an integer number (79657110).

Almost surely, 2^420752734 is an apocalyptic number.

420752734 is a deficient number, since it is larger than the sum of its proper divisors (216504146).

420752734 is a wasteful number, since it uses less digits than its factorization.

420752734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042594.

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 420752734 is about 20512.2581399513. The cubic root of 420752734 is about 749.3343628926.

The spelling of 420752734 in words is "four hundred twenty million, seven hundred fifty-two thousand, seven hundred thirty-four".