6900240 has 40 divisors (see below), whose sum is σ = 21391488. Its totient is φ = 1840000.

The previous prime is 6900233. The next prime is 6900281. The reversal of 6900240 is 420096.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×6900240² = 95226624115200, which contains 22 as substring.

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, 14136 + ... + 14615.

Almost surely, 2^6900240 is an apocalyptic number.

6900240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6900240 is an abundant number, since it is smaller than the sum of its proper divisors (14491248).

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

6900240 is a wasteful number, since it uses less digits than its factorization.

6900240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28767 (or 28761 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 6900240 is about 2626.8307901348. The cubic root of 6900240 is about 190.3800334499.

It can be divided in two parts, 6900 and 240, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 6900240 in words is "six million, nine hundred thousand, two hundred forty".