1601703440 has 40 divisors (see below), whose sum is σ = 3885876288. Its totient is φ = 612824960.

The previous prime is 1601703419. The next prime is 1601703451. The reversal of 1601703440 is 443071061.

It is a tau number, because it is divible by the number of its divisors (40).

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, 433406 + ... + 437085.

Almost surely, 2^1601703440 is an apocalyptic number.

1601703440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1601703440 is an abundant number, since it is smaller than the sum of its proper divisors (2284172848).

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

1601703440 is a wasteful number, since it uses less digits than its factorization.

1601703440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870527 (or 870521 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1601703440 is about 40021.2873356168. The cubic root of 1601703440 is about 1170.0220221340.

The spelling of 1601703440 in words is "one billion, six hundred one million, seven hundred three thousand, four hundred forty".