3945749462 has 4 divisors (see below), whose sum is σ = 5918624196. Its totient is φ = 1972874730.

The previous prime is 3945749443. The next prime is 3945749497. The reversal of 3945749462 is 2649475493.

It is a semiprime because it is the product of two primes.

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, 986437364 + ... + 986437367.

It is an arithmetic number, because the mean of its divisors is an integer number (1479656049).

Almost surely, 2^3945749462 is an apocalyptic number.

3945749462 is a deficient number, since it is larger than the sum of its proper divisors (1972874734).

3945749462 is a wasteful number, since it uses less digits than its factorization.

3945749462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972874733.

The product of its digits is 6531840, while the sum is 53.

The square root of 3945749462 is about 62815.2008832257. The cubic root of 3945749462 is about 1580.1919146788.

The spelling of 3945749462 in words is "three billion, nine hundred forty-five million, seven hundred forty-nine thousand, four hundred sixty-two".