1940520693 has 8 divisors (see below), whose sum is σ = 2650467456. Its totient is φ = 1262127200.

The previous prime is 1940520689. The next prime is 1940520697. The reversal of 1940520693 is 3960250491.

It is an interprime number because it is at equal distance from previous prime (1940520689) and next prime (1940520697).

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

It is a cyclic number.

It is not a de Polignac number, because 1940520693 - 2² = 1940520689 is a prime.

It is a super-2 number, since 2×1940520693² = 7531241119922400498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940520697) 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, 7888173 + ... + 7888418.

It is an arithmetic number, because the mean of its divisors is an integer number (331308432).

Almost surely, 2^1940520693 is an apocalyptic number.

It is an amenable number.

1940520693 is a deficient number, since it is larger than the sum of its proper divisors (709946763).

1940520693 is a wasteful number, since it uses less digits than its factorization.

1940520693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15776635.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 1940520693 is about 44051.3415573238. The cubic root of 1940520693 is about 1247.3052761184.

The spelling of 1940520693 in words is "one billion, nine hundred forty million, five hundred twenty thousand, six hundred ninety-three".