1745897420 has 24 divisors (see below), whose sum is σ = 3668313264. Its totient is φ = 697991616.

The previous prime is 1745897389. The next prime is 1745897473. The reversal of 1745897420 is 247985471.

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, 17774 + ... + 61706.

It is an arithmetic number, because the mean of its divisors is an integer number (152846386).

Almost surely, 2^1745897420 is an apocalyptic number.

1745897420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1745897420 is an abundant number, since it is smaller than the sum of its proper divisors (1922415844).

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

1745897420 is a wasteful number, since it uses less digits than its factorization.

1745897420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45929 (or 45927 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 1745897420 is about 41783.9373443911. The cubic root of 1745897420 is about 1204.1286998695.

The spelling of 1745897420 in words is "one billion, seven hundred forty-five million, eight hundred ninety-seven thousand, four hundred twenty".