4019640692 has 6 divisors (see below), whose sum is σ = 7034371218. Its totient is φ = 2009820344.

The previous prime is 4019640631. The next prime is 4019640719. The reversal of 4019640692 is 2960469104.

It can be written as a sum of positive squares in only one way, i.e., 3220108516 + 799532176 = 56746^2 + 28276^2 .

It is a super-2 number, since 2×4019640692² = 32315022585564477728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502455083 + ... + 502455090.

It is an arithmetic number, because the mean of its divisors is an integer number (1172395203).

Almost surely, 2^4019640692 is an apocalyptic number.

It is an amenable number.

4019640692 is a deficient number, since it is larger than the sum of its proper divisors (3014730526).

4019640692 is a wasteful number, since it uses less digits than its factorization.

4019640692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004910177 (or 1004910175 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 4019640692 is about 63400.6363690460. The cubic root of 4019640692 is about 1589.9949490234.

The spelling of 4019640692 in words is "four billion, nineteen million, six hundred forty thousand, six hundred ninety-two".