749905450 has 24 divisors (see below), whose sum is σ = 1594085472. Its totient is φ = 257110320.

The previous prime is 749905441. The next prime is 749905463. The reversal of 749905450 is 54509947.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 749905397 and 749905406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1070944 + ... + 1071643.

It is an arithmetic number, because the mean of its divisors is an integer number (66420228).

Almost surely, 2^749905450 is an apocalyptic number.

749905450 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

749905450 is an abundant number, since it is smaller than the sum of its proper divisors (844180022).

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

749905450 is a wasteful number, since it uses less digits than its factorization.

749905450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142606 (or 2142601 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 749905450 is about 27384.4015819225. The cubic root of 749905450 is about 908.5221150889.

The spelling of 749905450 in words is "seven hundred forty-nine million, nine hundred five thousand, four hundred fifty".