622040040 has 64 divisors (see below), whose sum is σ = 2073470400. Its totient is φ = 165877056.

The previous prime is 622039981. The next prime is 622040051. The reversal of 622040040 is 40040226.

622040040 is a `hidden beast` number, since 6 + 220 + 400 + 40 = 666.

It is a super-3 number, since 3×622040040³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 622039995 and 622040022.

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, 286902 + ... + 289061.

It is an arithmetic number, because the mean of its divisors is an integer number (32397975).

Almost surely, 2^622040040 is an apocalyptic number.

622040040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

622040040 is an abundant number, since it is smaller than the sum of its proper divisors (1451430360).

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

622040040 is a wasteful number, since it uses less digits than its factorization.

622040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575983 (or 575973 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 622040040 is about 24940.7305426285. The cubic root of 622040040 is about 853.6361142067.

Adding to 622040040 its reverse (40040226), we get a palindrome (662080266).

The spelling of 622040040 in words is "six hundred twenty-two million, forty thousand, forty".