626304378240 has 192 divisors, whose sum is σ = 2232472694400. Its totient is φ = 161626890240.

The previous prime is 626304378223. The next prime is 626304378277. The reversal of 626304378240 is 42873403626.

626304378240 is a `hidden beast` number, since 6 + 2 + 6 + 30 + 4 + 378 + 240 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1575205 + ... + 1932324.

It is an arithmetic number, because the mean of its divisors is an integer number (11627461950).

Almost surely, 2^626304378240 is an apocalyptic number.

626304378240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

626304378240 is an abundant number, since it is smaller than the sum of its proper divisors (1606168316160).

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

626304378240 is a wasteful number, since it uses less digits than its factorization.

626304378240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507585 (or 3507570 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 626304378240 in words is "six hundred twenty-six billion, three hundred four million, three hundred seventy-eight thousand, two hundred forty".