1449856890 has 24 divisors (see below), whose sum is σ = 3769628148. Its totient is φ = 386628480.

The previous prime is 1449856871. The next prime is 1449856909. The reversal of 1449856890 is 986589441.

1449856890 is a `hidden beast` number, since 1 + 4 + 498 + 5 + 68 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (1449856871) and next prime (1449856909).

It can be written as a sum of positive squares in 2 ways, for example, as 1277276121 + 172580769 = 35739^2 + 13137^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8054671 + ... + 8054850.

Almost surely, 2^1449856890 is an apocalyptic number.

1449856890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1449856890 is an abundant number, since it is smaller than the sum of its proper divisors (2319771258).

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

1449856890 is a wasteful number, since it uses less digits than its factorization.

1449856890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16109534 (or 16109531 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 1449856890 is about 38076.9863565908. The cubic root of 1449856890 is about 1131.8139581345.

The spelling of 1449856890 in words is "one billion, four hundred forty-nine million, eight hundred fifty-six thousand, eight hundred ninety".