3490400747 has 4 divisors (see below), whose sum is σ = 3695718456. Its totient is φ = 3285083040.

The previous prime is 3490400737. The next prime is 3490400777. The reversal of 3490400747 is 7470040943.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7470040943 = 33619 ⋅222197.

It is a cyclic number.

It is not a de Polignac number, because 3490400747 - 2⁴ = 3490400731 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3490400747.

It is not an unprimeable number, because it can be changed into a prime (3490400707) 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, 102658829 + ... + 102658862.

It is an arithmetic number, because the mean of its divisors is an integer number (923929614).

Almost surely, 2^3490400747 is an apocalyptic number.

3490400747 is a deficient number, since it is larger than the sum of its proper divisors (205317709).

3490400747 is a wasteful number, since it uses less digits than its factorization.

3490400747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205317708.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 3490400747 is about 59079.6136327921. The cubic root of 3490400747 is about 1516.9051680853.

The spelling of 3490400747 in words is "three billion, four hundred ninety million, four hundred thousand, seven hundred forty-seven".