7834240 has 32 divisors (see below), whose sum is σ = 18730260. Its totient is φ = 3133440.

The previous prime is 7834217. The next prime is 7834259. The reversal of 7834240 is 424387.

It can be written as a sum of positive squares in 2 ways, for example, as 7529536 + 304704 = 2744^2 + 552^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×7834240² = 122750632755200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7834199 and 7834208.

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, 5481 + ... + 6760.

Almost surely, 2^7834240 is an apocalyptic number.

It is an amenable number.

7834240 is an abundant number, since it is smaller than the sum of its proper divisors (10896020).

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

7834240 is a wasteful number, since it uses less digits than its factorization.

7834240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12260 (or 12248 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 7834240 is about 2798.9712395807. The cubic root of 7834240 is about 198.6090148967.

The spelling of 7834240 in words is "seven million, eight hundred thirty-four thousand, two hundred forty".