1702149940 has 24 divisors (see below), whose sum is σ = 3578058792. Its totient is φ = 680184960.

The previous prime is 1702149931. The next prime is 1702149947. The reversal of 1702149940 is 499412071.

It can be written as a sum of positive squares in 4 ways, for example, as 302342544 + 1399807396 = 17388^2 + 37414^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1702149940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1702149947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21259 + ... + 62098.

It is an arithmetic number, because the mean of its divisors is an integer number (149085783).

Almost surely, 2^1702149940 is an apocalyptic number.

1702149940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1702149940 is an abundant number, since it is smaller than the sum of its proper divisors (1875908852).

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

1702149940 is a wasteful number, since it uses less digits than its factorization.

1702149940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84387 (or 84385 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1702149940 is about 41257.1198703933. The cubic root of 1702149940 is about 1193.9861010122.

The spelling of 1702149940 in words is "one billion, seven hundred two million, one hundred forty-nine thousand, nine hundred forty".