20762994 has 64 divisors (see below), whose sum is σ = 50429952. Its totient is φ = 5572800.

The previous prime is 20762977. The next prime is 20762999. The reversal of 20762994 is 49926702.

It is a super-2 number, since 2×20762994² = 862203839688072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20762999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47959 + ... + 48389.

It is an arithmetic number, because the mean of its divisors is an integer number (787968).

Almost surely, 2^20762994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20762994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25214976).

20762994 is an abundant number, since it is smaller than the sum of its proper divisors (29666958).

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

20762994 is a wasteful number, since it uses less digits than its factorization.

20762994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 20762994 is about 4556.6428431467. The cubic root of 20762994 is about 274.8505810882.

The spelling of 20762994 in words is "twenty million, seven hundred sixty-two thousand, nine hundred ninety-four".