3547940 has 24 divisors (see below), whose sum is σ = 8128512. Its totient is φ = 1290080.

The previous prime is 3547933. The next prime is 3547949. The reversal of 3547940 is 497453.

It is a d-powerful number, because it can be written as 3¹³ + 5⁹ + 4 + 7³ + 9² + 4³ + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 3547897 and 3547906.

It is not an unprimeable number, because it can be changed into a prime (3547949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7844 + ... + 8283.

It is an arithmetic number, because the mean of its divisors is an integer number (338688).

Almost surely, 2^3547940 is an apocalyptic number.

It is an amenable number.

3547940 is an abundant number, since it is smaller than the sum of its proper divisors (4580572).

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

3547940 is a wasteful number, since it uses less digits than its factorization.

3547940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16147 (or 16145 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 3547940 is about 1883.5976215742. The cubic root of 3547940 is about 152.5195173443.

The spelling of 3547940 in words is "three million, five hundred forty-seven thousand, nine hundred forty".