2691202428 has 48 divisors (see below), whose sum is σ = 6994703520. Its totient is φ = 894816000.

The previous prime is 2691202417. The next prime is 2691202439. The reversal of 2691202428 is 8242021962.

2691202428 is a `hidden beast` number, since 26 + 9 + 1 + 202 + 428 = 666.

2691202428 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2691202417) and next prime (2691202439).

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

It is a junction number, because it is equal to n+sod(n) for n = 2691202392 and 2691202401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12238 + ... + 74378.

It is an arithmetic number, because the mean of its divisors is an integer number (145722990).

Almost surely, 2^2691202428 is an apocalyptic number.

It is an amenable number.

2691202428 is an abundant number, since it is smaller than the sum of its proper divisors (4303501092).

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

2691202428 is a wasteful number, since it uses less digits than its factorization.

2691202428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62555 (or 62547 counting only the distinct ones).

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

The square root of 2691202428 is about 51876.8004795978. The cubic root of 2691202428 is about 1390.9626077203.

The spelling of 2691202428 in words is "two billion, six hundred ninety-one million, two hundred two thousand, four hundred twenty-eight".