2692421820 has 108 divisors (see below), whose sum is σ = 8977037160. Its totient is φ = 652703040.

The previous prime is 2692421819. The next prime is 2692421821. The reversal of 2692421820 is 281242962.

It is an interprime number because it is at equal distance from previous prime (2692421819) and next prime (2692421821).

It is a super-2 number, since 2×2692421820² = 14498270513624224800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2692421821) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 40030 + ... + 83589.

Almost surely, 2^2692421820 is an apocalyptic number.

2692421820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2692421820 is an abundant number, since it is smaller than the sum of its proper divisors (6284615340).

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

2692421820 is a wasteful number, since it uses less digits than its factorization.

2692421820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123656 (or 123640 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 2692421820 is about 51888.5519165837. The cubic root of 2692421820 is about 1391.1726591270.

The spelling of 2692421820 in words is "two billion, six hundred ninety-two million, four hundred twenty-one thousand, eight hundred twenty".