1969649452 has 24 divisors (see below), whose sum is σ = 3481620912. Its totient is φ = 974937600.

The previous prime is 1969649417. The next prime is 1969649467. The reversal of 1969649452 is 2549469691.

It is a junction number, because it is equal to n+sod(n) for n = 1969649393 and 1969649402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222552 + ... + 231232.

It is an arithmetic number, because the mean of its divisors is an integer number (145067538).

Almost surely, 2^1969649452 is an apocalyptic number.

It is an amenable number.

1969649452 is a deficient number, since it is larger than the sum of its proper divisors (1511971460).

1969649452 is a wasteful number, since it uses less digits than its factorization.

1969649452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9249 (or 9247 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 55.

The square root of 1969649452 is about 44380.7328916502. The cubic root of 1969649452 is about 1253.5153211730.

The spelling of 1969649452 in words is "one billion, nine hundred sixty-nine million, six hundred forty-nine thousand, four hundred fifty-two".