2145241788 has 24 divisors (see below), whose sum is σ = 5167034880. Its totient is φ = 692013360.

The previous prime is 2145241771. The next prime is 2145241799. The reversal of 2145241788 is 8871425412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2883018 + ... + 2883761.

It is an arithmetic number, because the mean of its divisors is an integer number (215293120).

Almost surely, 2^2145241788 is an apocalyptic number.

It is an amenable number.

2145241788 is an abundant number, since it is smaller than the sum of its proper divisors (3021793092).

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

2145241788 is a wasteful number, since it uses less digits than its factorization.

2145241788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5766817 (or 5766815 counting only the distinct ones).

The product of its digits is 143360, while the sum is 42.

The square root of 2145241788 is about 46316.7549381431. The cubic root of 2145241788 is about 1289.7100460030.

The spelling of 2145241788 in words is "two billion, one hundred forty-five million, two hundred forty-one thousand, seven hundred eighty-eight".