3911428690 has 16 divisors (see below), whose sum is σ = 7582154328. Its totient is φ = 1444219776.

The previous prime is 3911428687. The next prime is 3911428733. The reversal of 3911428690 is 968241193.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3382934569 + 528494121 = 58163^2 + 22989^2 .

It is a super-2 number, since 2×3911428690² = 30598548793910232200, 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, 15043827 + ... + 15044086.

Almost surely, 2^3911428690 is an apocalyptic number.

3911428690 is a deficient number, since it is larger than the sum of its proper divisors (3670725638).

3911428690 is a wasteful number, since it uses less digits than its factorization.

3911428690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30087933.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 3911428690 is about 62541.4157978535. The cubic root of 3911428690 is about 1575.5969773589.

The spelling of 3911428690 in words is "three billion, nine hundred eleven million, four hundred twenty-eight thousand, six hundred ninety".