20761622 has 16 divisors (see below), whose sum is σ = 36819360. Its totient is φ = 8590848.

The previous prime is 20761619. The next prime is 20761667. The reversal of 20761622 is 22616702.

It is a junction number, because it is equal to n+sod(n) for n = 20761591 and 20761600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25163 + ... + 25974.

It is an arithmetic number, because the mean of its divisors is an integer number (2301210).

Almost surely, 2^20761622 is an apocalyptic number.

20761622 is a deficient number, since it is larger than the sum of its proper divisors (16057738).

20761622 is a wasteful number, since it uses less digits than its factorization.

20761622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51175.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 20761622 is about 4556.4922912258. The cubic root of 20761622 is about 274.8445269949.

It can be divided in two parts, 20 and 761622, that multiplied together give a triangular number (15232440 = T₅₅₁₉).

The spelling of 20761622 in words is "twenty million, seven hundred sixty-one thousand, six hundred twenty-two".