1679676240 has 80 divisors (see below), whose sum is σ = 5680368576. Its totient is φ = 407193600.

The previous prime is 1679676239. The next prime is 1679676241. The reversal of 1679676240 is 426769761.

It is an interprime number because it is at equal distance from previous prime (1679676239) and next prime (1679676241).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1679676240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679676241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315481 + ... + 320760.

Almost surely, 2^1679676240 is an apocalyptic number.

1679676240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1679676240 is an abundant number, since it is smaller than the sum of its proper divisors (4000692336).

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

1679676240 is a wasteful number, since it uses less digits than its factorization.

1679676240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636268 (or 636262 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 1679676240 is about 40983.8534059451. The cubic root of 1679676240 is about 1188.7080204016.

The spelling of 1679676240 in words is "one billion, six hundred seventy-nine million, six hundred seventy-six thousand, two hundred forty".