3778990272 has 126 divisors (see below), whose sum is σ = 11194116804. Its totient is φ = 1218850560.

The previous prime is 3778990253. The next prime is 3778990273. The reversal of 3778990272 is 2720998773.

It is not an unprimeable number, because it can be changed into a prime (3778990273) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 550123 + ... + 556949.

Almost surely, 2^3778990272 is an apocalyptic number.

3778990272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3778990272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5597058402).

3778990272 is an abundant number, since it is smaller than the sum of its proper divisors (7415126532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3778990272 is a wasteful number, since it uses less digits than its factorization.

3778990272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6907 (or 6863 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 54.

The square root of 3778990272 is about 61473.4924337311. The cubic root of 3778990272 is about 1557.6095143226.

The spelling of 3778990272 in words is "three billion, seven hundred seventy-eight million, nine hundred ninety thousand, two hundred seventy-two".