20612402 has 8 divisors (see below), whose sum is σ = 30954096. Its totient is φ = 10294372.

The previous prime is 20612377. The next prime is 20612411. The reversal of 20612402 is 20421602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20612402² = 849742232419208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3548 + ... + 7335.

It is an arithmetic number, because the mean of its divisors is an integer number (3869262).

Almost surely, 2^20612402 is an apocalyptic number.

20612402 is a deficient number, since it is larger than the sum of its proper divisors (10341694).

20612402 is a wasteful number, since it uses less digits than its factorization.

20612402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11832.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20612402 is about 4540.0883251320. The cubic root of 20612402 is about 274.1844798105.

The spelling of 20612402 in words is "twenty million, six hundred twelve thousand, four hundred two".