1676662740 has 240 divisors, whose sum is σ = 5813482752. Its totient is φ = 402361344.

The previous prime is 1676662711. The next prime is 1676662747. The reversal of 1676662740 is 472666761.

It is a happy number.

It is a super-2 number, since 2×1676662740² = 5622395887408615200, which contains 22 as substring.

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 (1676662747) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 632097 + ... + 634743.

Almost surely, 2^1676662740 is an apocalyptic number.

1676662740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1676662740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2906741376).

1676662740 is an abundant number, since it is smaller than the sum of its proper divisors (4136820012).

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

1676662740 is a wasteful number, since it uses less digits than its factorization.

1676662740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708 (or 2697 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 1676662740 is about 40947.0724228241. The cubic root of 1676662740 is about 1187.9967095103.

The spelling of 1676662740 in words is "one billion, six hundred seventy-six million, six hundred sixty-two thousand, seven hundred forty".