445744380 has 48 divisors (see below), whose sum is σ = 1250242560. Its totient is φ = 118659648.

The previous prime is 445744337. The next prime is 445744417. The reversal of 445744380 is 83447544.

445744380 = T₁₇₅ + T₁₇₆ + ... + T₁₃₈₈.

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, 30301 + ... + 42539.

It is an arithmetic number, because the mean of its divisors is an integer number (26046720).

Almost surely, 2^445744380 is an apocalyptic number.

It is an amenable number.

445744380 is an abundant number, since it is smaller than the sum of its proper divisors (804498180).

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

445744380 is a wasteful number, since it uses less digits than its factorization.

445744380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12858 (or 12856 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 39.

The square root of 445744380 is about 21112.6592356340. The cubic root of 445744380 is about 763.8861315270.

The spelling of 445744380 in words is "four hundred forty-five million, seven hundred forty-four thousand, three hundred eighty".