1772146340 has 24 divisors (see below), whose sum is σ = 3917376960. Its totient is φ = 671550048.

The previous prime is 1772146331. The next prime is 1772146349. The reversal of 1772146340 is 436412771.

It is an interprime number because it is at equal distance from previous prime (1772146331) and next prime (1772146349).

It is a self number, because there is not a number n which added to its sum of digits gives 1772146340.

It is not an unprimeable number, because it can be changed into a prime (1772146349) 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, 2331392 + ... + 2332151.

It is an arithmetic number, because the mean of its divisors is an integer number (163224040).

Almost surely, 2^1772146340 is an apocalyptic number.

1772146340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1772146340 is an abundant number, since it is smaller than the sum of its proper divisors (2145230620).

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

1772146340 is a wasteful number, since it uses less digits than its factorization.

1772146340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4663571 (or 4663569 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 1772146340 is about 42096.8685296187. The cubic root of 1772146340 is about 1210.1332503574.

The spelling of 1772146340 in words is "one billion, seven hundred seventy-two million, one hundred forty-six thousand, three hundred forty".