2497990000 has 100 divisors (see below), whose sum is σ = 6597981720. Its totient is φ = 908320000.

The previous prime is 2497989997. The next prime is 2497990009. The reversal of 2497990000 is 997942.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2497990009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 98646 + ... + 121354.

Almost surely, 2^2497990000 is an apocalyptic number.

2497990000 is a gapful number since it is divisible by the number (20) 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 2497990000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3298990860).

2497990000 is an abundant number, since it is smaller than the sum of its proper divisors (4099991720).

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

2497990000 is a wasteful number, since it uses less digits than its factorization.

2497990000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22748 (or 22727 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 2497990000 is about 49979.8959582751. The cubic root of 2497990000 is about 1356.8449788131.

The spelling of 2497990000 in words is "two billion, four hundred ninety-seven million, nine hundred ninety thousand".