628673472 has 84 divisors (see below), whose sum is σ = 2059417776. Its totient is φ = 179619840.

The previous prime is 628673443. The next prime is 628673473. The reversal of 628673472 is 274376826.

It is a tau number, because it is divible by the number of its divisors (84).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628673473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73929 + ... + 81992.

Almost surely, 2^628673472 is an apocalyptic number.

It is an amenable number.

628673472 is an abundant number, since it is smaller than the sum of its proper divisors (1430744304).

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

628673472 is a wasteful number, since it uses less digits than its factorization.

628673472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155946 (or 155933 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 628673472 is about 25073.3618009233. The cubic root of 628673472 is about 856.6597818911.

The spelling of 628673472 in words is "six hundred twenty-eight million, six hundred seventy-three thousand, four hundred seventy-two".