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1421964 = 223239499
BaseRepresentation
bin101011011001010001100
32200020120100
411123022030
5331000324
650251100
715041445
oct5331214
92606510
101421964
11891385
12586a90
133aa2cb
142902cc
151d14c9
hex15b28c

1421964 has 18 divisors (see below), whose sum is σ = 3594500. Its totient is φ = 473976.

The previous prime is 1421963. The next prime is 1421969. The reversal of 1421964 is 4691241.

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1421963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19714 + ... + 19785.

21421964 is an apocalyptic number.

It is an amenable number.

1421964 is an abundant number, since it is smaller than the sum of its proper divisors (2172536).

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

1421964 is a wasteful number, since it uses less digits than its factorization.

1421964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39509 (or 39504 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1421964 is about 1192.4613201274. The cubic root of 1421964 is about 112.4508822619.

The spelling of 1421964 in words is "one million, four hundred twenty-one thousand, nine hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 36 39499 78998 118497 157996 236994 355491 473988 710982 1421964