1679620494 has 24 divisors (see below), whose sum is σ = 3511651752. Its totient is φ = 535530160.

The previous prime is 1679620493. The next prime is 1679620571. The reversal of 1679620494 is 4940269761.

It is a happy number.

1679620494 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1679620494² = 5642250007729608072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679620493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261417 + ... + 267764.

It is an arithmetic number, because the mean of its divisors is an integer number (146318823).

Almost surely, 2^1679620494 is an apocalyptic number.

1679620494 is an abundant number, since it is smaller than the sum of its proper divisors (1832031258).

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

1679620494 is a wasteful number, since it uses less digits than its factorization.

1679620494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529232 (or 529209 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 1679620494 is about 40983.1733031985. The cubic root of 1679620494 is about 1188.6948697621.

The spelling of 1679620494 in words is "one billion, six hundred seventy-nine million, six hundred twenty thousand, four hundred ninety-four".