2028738492 has 36 divisors (see below), whose sum is σ = 5594401176. Its totient is φ = 614769120.

The previous prime is 2028738479. The next prime is 2028738553. The reversal of 2028738492 is 2948378202.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2561143 + ... + 2561934.

Almost surely, 2^2028738492 is an apocalyptic number.

2028738492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2028738492 is an abundant number, since it is smaller than the sum of its proper divisors (3565662684).

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

2028738492 is a wasteful number, since it uses less digits than its factorization.

2028738492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123098 (or 5123093 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 2028738492 is about 45041.5196457668. The cubic root of 2028738492 is about 1265.9270788992.

The spelling of 2028738492 in words is "two billion, twenty-eight million, seven hundred thirty-eight thousand, four hundred ninety-two".