620040040630 has 64 divisors (see below), whose sum is σ = 1159074385920. Its totient is φ = 238642185600.

The previous prime is 620040040621. The next prime is 620040040643. The reversal of 620040040630 is 36040040026.

It is a junction number, because it is equal to n+sod(n) for n = 620040040595 and 620040040604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78293811 + ... + 78301729.

It is an arithmetic number, because the mean of its divisors is an integer number (18110537280).

Almost surely, 2^620040040630 is an apocalyptic number.

620040040630 is a deficient number, since it is larger than the sum of its proper divisors (539034345290).

620040040630 is a wasteful number, since it uses less digits than its factorization.

620040040630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10765.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 620040040630 its reverse (36040040026), we get a palindrome (656080080656).

The spelling of 620040040630 in words is "six hundred twenty billion, forty million, forty thousand, six hundred thirty".