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40000000444 = 2267149253733
BaseRepresentation
bin100101010000001011…
…111001000110111100
310211020200001120002221
4211100023321012330
51123410000003234
630213054455124
72614144252045
oct452013710674
9124220046087
1040000000444
1115a66a59408
127903b044a4
133a06082821
141d165ab8cc
1510919d6eb4
hex9502f91bc

40000000444 has 12 divisors (see below), whose sum is σ = 71044777384. Its totient is φ = 19701492624.

The previous prime is 40000000421. The next prime is 40000000531. The reversal of 40000000444 is 44400000004.

40000000444 is a modest number, since divided by 444 gives 40 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74626599 + ... + 74627134.

Almost surely, 240000000444 is an apocalyptic number.

It is an amenable number.

40000000444 is a deficient number, since it is larger than the sum of its proper divisors (31044776940).

40000000444 is a wasteful number, since it uses less digits than its factorization.

40000000444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149253804 (or 149253802 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 40000000444 its reverse (44400000004), we get a palindrome (84400000448).

The spelling of 40000000444 in words is "forty billion, four hundred forty-four", and thus it is an aban number.

Divisors: 1 2 4 67 134 268 149253733 298507466 597014932 10000000111 20000000222 40000000444