1900949948 has 12 divisors (see below), whose sum is σ = 3329730432. Its totient is φ = 949598400.

The previous prime is 1900949933. The next prime is 1900949951. The reversal of 1900949948 is 8499490091.

It is a super-2 number, since 2×1900949948² = 7227221409602405408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1900949948.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214253 + ... + 222948.

It is an arithmetic number, because the mean of its divisors is an integer number (277477536).

Almost surely, 2^1900949948 is an apocalyptic number.

It is an amenable number.

1900949948 is a deficient number, since it is larger than the sum of its proper divisors (1428780484).

1900949948 is a wasteful number, since it uses less digits than its factorization.

1900949948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438292 (or 438290 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 1900949948 is about 43599.8847246183. The cubic root of 1900949948 is about 1238.7687109948.

The spelling of 1900949948 in words is "one billion, nine hundred million, nine hundred forty-nine thousand, nine hundred forty-eight".