1939463228 has 48 divisors (see below), whose sum is σ = 3685355520. Its totient is φ = 890072064.

The previous prime is 1939463203. The next prime is 1939463231. The reversal of 1939463228 is 8223649391.

It is a super-2 number, since 2×1939463228² = 7523035225528359968, 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 in 15 ways as a sum of consecutive naturals, for example, 412700 + ... + 417372.

It is an arithmetic number, because the mean of its divisors is an integer number (76778240).

Almost surely, 2^1939463228 is an apocalyptic number.

It is an amenable number.

1939463228 is a deficient number, since it is larger than the sum of its proper divisors (1745892292).

1939463228 is a wasteful number, since it uses less digits than its factorization.

1939463228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4866 (or 4864 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The square root of 1939463228 is about 44039.3372793007. The cubic root of 1939463228 is about 1247.0786666076.

The spelling of 1939463228 in words is "one billion, nine hundred thirty-nine million, four hundred sixty-three thousand, two hundred twenty-eight".