20967954 has 32 divisors (see below), whose sum is σ = 48316416. Its totient is φ = 5942160.

The previous prime is 20967949. The next prime is 20967971. The reversal of 20967954 is 45976902.

It is a super-2 number, since 2×20967954² = 879310189892232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3369 + ... + 7299.

It is an arithmetic number, because the mean of its divisors is an integer number (1509888).

Almost surely, 2^20967954 is an apocalyptic number.

20967954 is an abundant number, since it is smaller than the sum of its proper divisors (27348462).

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

20967954 is a wasteful number, since it uses less digits than its factorization.

20967954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 20967954 is about 4579.0778547651. The cubic root of 20967954 is about 275.7520089162.

The spelling of 20967954 in words is "twenty million, nine hundred sixty-seven thousand, nine hundred fifty-four".