1949558480 has 40 divisors (see below), whose sum is σ = 4546236552. Its totient is φ = 777498624.

The previous prime is 1949558461. The next prime is 1949558483. The reversal of 1949558480 is 848559491.

It can be written as a sum of positive squares in 4 ways, for example, as 408524944 + 1541033536 = 20212^2 + 39256^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949558483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9197 + ... + 63116.

Almost surely, 2^1949558480 is an apocalyptic number.

1949558480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1949558480 is an abundant number, since it is smaller than the sum of its proper divisors (2596678072).

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

1949558480 is a wasteful number, since it uses less digits than its factorization.

1949558480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72663 (or 72657 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 53.

The square root of 1949558480 is about 44153.8048190640. The cubic root of 1949558480 is about 1249.2386788062.

The spelling of 1949558480 in words is "one billion, nine hundred forty-nine million, five hundred fifty-eight thousand, four hundred eighty".