746778428 has 48 divisors (see below), whose sum is σ = 1474986240. Its totient is φ = 327868800.

The previous prime is 746778407. The next prime is 746778433. The reversal of 746778428 is 824877647.

It is a self number, because there is not a number n which added to its sum of digits gives 746778428.

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, 183803 + ... + 187821.

It is an arithmetic number, because the mean of its divisors is an integer number (30728880).

Almost surely, 2^746778428 is an apocalyptic number.

It is an amenable number.

746778428 is a deficient number, since it is larger than the sum of its proper divisors (728207812).

746778428 is a wasteful number, since it uses less digits than its factorization.

746778428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178 (or 4176 counting only the distinct ones).

The product of its digits is 4214784, while the sum is 53.

The square root of 746778428 is about 27327.2469890401. The cubic root of 746778428 is about 907.2575438217.

The spelling of 746778428 in words is "seven hundred forty-six million, seven hundred seventy-eight thousand, four hundred twenty-eight".