628042046 has 4 divisors (see below), whose sum is σ = 942063072. Its totient is φ = 314021022.

The previous prime is 628042043. The next prime is 628042061. The reversal of 628042046 is 640240826.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×628042046² = 788873623087732232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628042043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157010510 + ... + 157010513.

It is an arithmetic number, because the mean of its divisors is an integer number (235515768).

Almost surely, 2^628042046 is an apocalyptic number.

628042046 is a deficient number, since it is larger than the sum of its proper divisors (314021026).

628042046 is a wasteful number, since it uses less digits than its factorization.

628042046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314021025.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 628042046 is about 25060.7670672707. The cubic root of 628042046 is about 856.3728823161.

The spelling of 628042046 in words is "six hundred twenty-eight million, forty-two thousand, forty-six".