2690987292 has 96 divisors (see below), whose sum is σ = 8136128000. Its totient is φ = 768842928.

The previous prime is 2690987269. The next prime is 2690987297. The reversal of 2690987292 is 2927890962.

It is a happy number.

2690987292 is a `hidden beast` number, since 269 + 0 + 98 + 7 + 292 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2690987297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 723 + ... + 73365.

Almost surely, 2^2690987292 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2690987292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4068064000).

2690987292 is an abundant number, since it is smaller than the sum of its proper divisors (5445140708).

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

2690987292 is a wasteful number, since it uses less digits than its factorization.

2690987292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72677 (or 72655 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 2690987292 is about 51874.7269101245. The cubic root of 2690987292 is about 1390.9255419955.

The spelling of 2690987292 in words is "two billion, six hundred ninety million, nine hundred eighty-seven thousand, two hundred ninety-two".