1790491772 has 12 divisors (see below), whose sum is σ = 3134845896. Its totient is φ = 894821520.

The previous prime is 1790491751. The next prime is 1790491777. The reversal of 1790491772 is 2771940971.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1790491777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96503 + ... + 113550.

It is an arithmetic number, because the mean of its divisors is an integer number (261237158).

Almost surely, 2^1790491772 is an apocalyptic number.

It is an amenable number.

1790491772 is a deficient number, since it is larger than the sum of its proper divisors (1344354124).

1790491772 is a wasteful number, since it uses less digits than its factorization.

1790491772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212188 (or 212186 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 47.

The square root of 1790491772 is about 42314.2029583448. The cubic root of 1790491772 is about 1214.2947290786.

The spelling of 1790491772 in words is "one billion, seven hundred ninety million, four hundred ninety-one thousand, seven hundred seventy-two".