1018628604 has 72 divisors (see below), whose sum is σ = 2986675328. Its totient is φ = 286688160.

The previous prime is 1018628599. The next prime is 1018628609. The reversal of 1018628604 is 4068268101.

1018628604 is a `hidden beast` number, since 10 + 18 + 6 + 28 + 604 = 666.

It is an interprime number because it is at equal distance from previous prime (1018628599) and next prime (1018628609).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018628609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13282 + ... + 47049.

Almost surely, 2^1018628604 is an apocalyptic number.

1018628604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1018628604 is an abundant number, since it is smaller than the sum of its proper divisors (1968046724).

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

1018628604 is a wasteful number, since it uses less digits than its factorization.

1018628604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60415 (or 60410 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1018628604 is about 31915.9615866419. The cubic root of 1018628604 is about 1006.1713705055.

The spelling of 1018628604 in words is "one billion, eighteen million, six hundred twenty-eight thousand, six hundred four".