1940653546 has 8 divisors (see below), whose sum is σ = 3134901924. Its totient is φ = 895686240.

The previous prime is 1940653541. The next prime is 1940653553. The reversal of 1940653546 is 6453560491.

It can be written as a sum of positive squares in 2 ways, for example, as 1885730625 + 54922921 = 43425^2 + 7411^2 .

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

It is a super-2 number, since 2×1940653546² = 7532272371204748232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1940653541) 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, 37320235 + ... + 37320286.

Almost surely, 2^1940653546 is an apocalyptic number.

1940653546 is a deficient number, since it is larger than the sum of its proper divisors (1194248378).

1940653546 is a wasteful number, since it uses less digits than its factorization.

1940653546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74640536.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 1940653546 is about 44052.8494651595. The cubic root of 1940653546 is about 1247.3337400365. Note that the first 3 decimals are identical.

The spelling of 1940653546 in words is "one billion, nine hundred forty million, six hundred fifty-three thousand, five hundred forty-six".