2690979340 has 24 divisors (see below), whose sum is σ = 6458350752. Its totient is φ = 922621440.

The previous prime is 2690979311. The next prime is 2690979341. The reversal of 2690979340 is 439790962.

It is not an unprimeable number, because it can be changed into a prime (2690979341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9610501 + ... + 9610780.

It is an arithmetic number, because the mean of its divisors is an integer number (269097948).

Almost surely, 2^2690979340 is an apocalyptic number.

2690979340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2690979340 is an abundant number, since it is smaller than the sum of its proper divisors (3767371412).

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

2690979340 is a wasteful number, since it uses less digits than its factorization.

2690979340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19221297 (or 19221295 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 49.

The square root of 2690979340 is about 51874.6502638813. The cubic root of 2690979340 is about 1390.9241719096.

The spelling of 2690979340 in words is "two billion, six hundred ninety million, nine hundred seventy-nine thousand, three hundred forty".