2249515980 has 36 divisors (see below), whose sum is σ = 6823532352. Its totient is φ = 599870880.

The previous prime is 2249515921. The next prime is 2249515991. The reversal of 2249515980 is 895159422.

It is a happy number.

2249515980 is a `hidden beast` number, since 2 + 2 + 4 + 9 + 51 + 598 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 6248476 + ... + 6248835.

Almost surely, 2^2249515980 is an apocalyptic number.

2249515980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2249515980 is an abundant number, since it is smaller than the sum of its proper divisors (4574016372).

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

2249515980 is a wasteful number, since it uses less digits than its factorization.

2249515980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12497326 (or 12497321 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 2249515980 is about 47429.0626093327. The cubic root of 2249515980 is about 1310.2767280511.

The spelling of 2249515980 in words is "two billion, two hundred forty-nine million, five hundred fifteen thousand, nine hundred eighty".