728071374 has 32 divisors (see below), whose sum is σ = 1535950080. Its totient is φ = 229442112.

The previous prime is 728071367. The next prime is 728071381. The reversal of 728071374 is 473170827.

It is an interprime number because it is at equal distance from previous prime (728071367) and next prime (728071381).

It is a Curzon number.

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, 50994 + ... + 63690.

It is an arithmetic number, because the mean of its divisors is an integer number (47998440).

Almost surely, 2^728071374 is an apocalyptic number.

728071374 is an abundant number, since it is smaller than the sum of its proper divisors (807878706).

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

728071374 is a wasteful number, since it uses less digits than its factorization.

728071374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13224.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 728071374 is about 26982.7977422653. The cubic root of 728071374 is about 899.6176870021.

The spelling of 728071374 in words is "seven hundred twenty-eight million, seventy-one thousand, three hundred seventy-four".