1721740348 has 24 divisors (see below), whose sum is σ = 3328994592. Its totient is φ = 775002624.

The previous prime is 1721740337. The next prime is 1721740367. The reversal of 1721740348 is 8430471271.

It is a super-2 number, since 2×1721740348² = 5928779651862322208, which contains 22 as substring.

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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548865 + ... + 551992.

It is an arithmetic number, because the mean of its divisors is an integer number (138708108).

Almost surely, 2^1721740348 is an apocalyptic number.

It is an amenable number.

1721740348 is a deficient number, since it is larger than the sum of its proper divisors (1607254244).

1721740348 is a wasteful number, since it uses less digits than its factorization.

1721740348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100901 (or 1100899 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 1721740348 is about 41493.8591601215. The cubic root of 1721740348 is about 1198.5492532999.

The spelling of 1721740348 in words is "one billion, seven hundred twenty-one million, seven hundred forty thousand, three hundred forty-eight".