1601253744 has 80 divisors (see below), whose sum is σ = 4323628032. Its totient is φ = 509693184.

The previous prime is 1601253733. The next prime is 1601253769. The reversal of 1601253744 is 4473521061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1206009 + ... + 1207335.

Almost surely, 2^1601253744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1601253744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2161814016).

1601253744 is an abundant number, since it is smaller than the sum of its proper divisors (2722374288).

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

1601253744 is a wasteful number, since it uses less digits than its factorization.

1601253744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2454 (or 2448 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 1601253744 is about 40015.6687311358. The cubic root of 1601253744 is about 1169.9125129995.

The spelling of 1601253744 in words is "one billion, six hundred one million, two hundred fifty-three thousand, seven hundred forty-four".