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1040021434 = 23169164093
BaseRepresentation
bin111101111111010…
…111011110111010
32200110222120012101
4331333113132322
54112221141214
6251111134014
734526015314
oct7577273672
92613876171
101040021434
11494079551
1225037430a
131376106ca
149c1a87b4
1561489774
hex3dfd77ba

1040021434 has 8 divisors (see below), whose sum is σ = 1560533940. Its totient is φ = 519843456.

The previous prime is 1040021407. The next prime is 1040021441. The reversal of 1040021434 is 4341200401.

It can be written as a sum of positive squares in 2 ways, for example, as 1010286225 + 29735209 = 31785^2 + 5453^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75709 + ... + 88384.

Almost surely, 21040021434 is an apocalyptic number.

1040021434 is a deficient number, since it is larger than the sum of its proper divisors (520512506).

1040021434 is a wasteful number, since it uses less digits than its factorization.

1040021434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167264.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1040021434 is about 32249.3633115446. The cubic root of 1040021434 is about 1013.1663640476.

Adding to 1040021434 its reverse (4341200401), we get a palindrome (5381221835).

The spelling of 1040021434 in words is "one billion, forty million, twenty-one thousand, four hundred thirty-four".

Divisors: 1 2 3169 6338 164093 328186 520010717 1040021434