20883454 has 4 divisors (see below), whose sum is σ = 31325184. Its totient is φ = 10441726.

The previous prime is 20883449. The next prime is 20883461. The reversal of 20883454 is 45438802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45438802 = 2 ⋅22719401.

It is a super-2 number, since 2×20883454² = 872237301940232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5220862 + ... + 5220865.

It is an arithmetic number, because the mean of its divisors is an integer number (7831296).

Almost surely, 2^20883454 is an apocalyptic number.

20883454 is a deficient number, since it is larger than the sum of its proper divisors (10441730).

20883454 is a wasteful number, since it uses less digits than its factorization.

20883454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10441729.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 20883454 is about 4569.8417915722. The cubic root of 20883454 is about 275.3810870835.

The spelling of 20883454 in words is "twenty million, eight hundred eighty-three thousand, four hundred fifty-four".