8434740 has 48 divisors (see below), whose sum is σ = 23752512. Its totient is φ = 2236416.

The previous prime is 8434733. The next prime is 8434753. The reversal of 8434740 is 474348.

It is a super-2 number, since 2×8434740² = 142289677735200, which contains 22 as substring.

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 = 8434698 and 8434707.

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, 15147 + ... + 15693.

It is an arithmetic number, because the mean of its divisors is an integer number (494844).

Almost surely, 2^8434740 is an apocalyptic number.

It is an amenable number.

8434740 is an abundant number, since it is smaller than the sum of its proper divisors (15317772).

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

8434740 is a wasteful number, since it uses less digits than its factorization.

8434740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 8434740 is about 2904.2623848406. The cubic root of 8434740 is about 203.5591209197.

The spelling of 8434740 in words is "eight million, four hundred thirty-four thousand, seven hundred forty".