20861462 has 8 divisors (see below), whose sum is σ = 31311696. Its totient is φ = 10424232.

The previous prime is 20861459. The next prime is 20861509. The reversal of 20861462 is 26416802.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3968 + ... + 7580.

It is an arithmetic number, because the mean of its divisors is an integer number (3913962).

Almost surely, 2^20861462 is an apocalyptic number.

20861462 is a deficient number, since it is larger than the sum of its proper divisors (10450234).

20861462 is a wasteful number, since it uses less digits than its factorization.

20861462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6502.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 20861462 is about 4567.4349475389. The cubic root of 20861462 is about 275.2843867964.

It can be divided in two parts, 208 and 61462, that multiplied together give a triangular number (12784096 = T₅₀₅₆).

The spelling of 20861462 in words is "twenty million, eight hundred sixty-one thousand, four hundred sixty-two".