3540778 has 8 divisors (see below), whose sum is σ = 5339268. Its totient is φ = 1761024.

The previous prime is 3540773. The next prime is 3540787. The reversal of 3540778 is 8770453.

It can be written as a sum of positive squares in 2 ways, for example, as 2879809 + 660969 = 1697^2 + 813^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3540773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4201 + ... + 4972.

Almost surely, 2^3540778 is an apocalyptic number.

3540778 is a deficient number, since it is larger than the sum of its proper divisors (1798490).

3540778 is a wasteful number, since it uses less digits than its factorization.

3540778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9368.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 3540778 is about 1881.6955120316. The cubic root of 3540778 is about 152.4168210733.

The spelling of 3540778 in words is "three million, five hundred forty thousand, seven hundred seventy-eight".