1679522940 has 72 divisors (see below), whose sum is σ = 5145049728. Its totient is φ = 443433600.

The previous prime is 1679522927. The next prime is 1679522941. The reversal of 1679522940 is 492259761.

1679522940 is a `hidden beast` number, since 16 + 79 + 522 + 9 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679522941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28012 + ... + 64371.

It is an arithmetic number, because the mean of its divisors is an integer number (71459024).

Almost surely, 2^1679522940 is an apocalyptic number.

1679522940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1679522940 is an abundant number, since it is smaller than the sum of its proper divisors (3465526788).

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

1679522940 is a wasteful number, since it uses less digits than its factorization.

1679522940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92499 (or 92494 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 1679522940 is about 40981.9831145346. The cubic root of 1679522940 is about 1188.6718557966.

The spelling of 1679522940 in words is "one billion, six hundred seventy-nine million, five hundred twenty-two thousand, nine hundred forty".